Why firefox keep downgrading

Similar Questions

• Why Firefox keep resetting my homepage to Google? I DON'T LIKE TO HAVE TO ADDRESS WHY EACH TIME I PULL UP OF FIREFOX

  I don't want Google as my home page, or use it as my default search engine. WHY IS that Firefox is constantly reset my homepage to Google? I hope no more Google, so I DON'T want TO HAVE IT as MY HOMEPAGE. It's really pissing me off to have to return my homepage almost everytime I open Firefox. In addition, I have my anti-spyware configured to block any attempt to change my homepage, and I see the warning popping up almost every 20 minutes. This is NOT acceptable and begins to make me question YOUR credibility if you put in your service to the things that are reached that the user very clearly and in a targeted manner wants.

  I've been a user of Mozilla for something like 18 years. This latest version is the FIRST TIME that I felt like your service is less above board. Fix it, or I'll find something else. I won't be using a product that ignores my intended way of use. I only give you the way to lea to solve this problem, because you have (at least appeared) reliable up to this point. My patience is not long in this respect.

  I'm sorry that you are having this problem. I can assure you that we will be using the homepage of your choice, and w are not even in partnership with google, because it is not something that Mozilla did it on purpose (that we will always respect your choice to the user)

  I would try the following:

  • Sometimes, this can result in a corrupted Firefox profile. Try the procedure described in How to set preferences that will not save and let me know if it works.
  • If this fails, try an update of Firefox, Firefox Refresh - reset the parameters and modules
  • Finally, this can be caused by malware. Try looking for malware with scanners to troubleshoot Firefox problems caused by malicious software

• I have a computer at home, not on a network. Why Firefox keep resetting itself to use the system proxy settings whenever I start Firefox?

  I select no proxy, but the next time I open the browser it is reset.
  Thank you.

  -> Tap ALT key or press F10 to display the Menu bar

  -> go to Menu help-> select restart with disabled modules

  Firefox closes, then it will open with Firefox comes from base. Now follow these steps:

  -> go to Menu view-> toolbars-> all unwanted/incompatible deselection with toolbars

  -> go to the Menu Tools-> clear recent history-> range of time: select 'ALL' -> click details (small arrow)-> location-> checkmarks on the Cookies, Cache , click clear now

  -> go to the Tools Menu-> Options-> privacy-> history-> section Firefox will: select "Remember history"

  -> go to the Tools Menu-> Options-> Security-> place the check on:

  1 warn me when sites try to install 2 modules) block reported attack sites 3) all declared fake web

  -> go to the Tools Menu-> Options-> advanced-> general-> remove the check mark from the warn me when sites Web try to redirect or reload the page

  -> go to the Tools Menu-> Options-> advanced-> network-> Offline Storage (Cache): click on the clear now button

  -> go to the Tools Menu-> Options-> advanced-> network-> click on the button settings... in front of connection-> any option n works, keep Permanent: where n = 1, 2, or 3

  -> Click OK in the Options window

  -> go to the Tools Menu-> Modules-> Extensions section-> REMOVE unwanted/Suspicious/Incompatible all Extensions (Add-ons)

  -> go to the Tools Menu-> Modules-> appearance section-> REMOVE unwanted/Suspicious/incompatible with all the themes (Persona)

  -> Restart Firefox

  You can activate your known & modules worthy of trust and themes later. Check and tell if its working.

• Why Firefox keep changing my perefence for Google as an eingine search for tabs and the Yahoo homepage?

  I am a user of Firefox 40.0.03. I put Google as a homepage of my start page and tabs. Lately, Firefox has started taking the freedom to change my preferences from Google to Yahoo preferences. In the last two days, I changed the setting from Yahoo to Google at least 10 times. But whenever I have shut down my system, Yahoo goes Google. I checked my system for any mischievous adware and Add-ons, but there are not.
  I don't want to use Yahoo. Is it a policy of Firefox to push Yahoo down our throats?

  https://support.Mozilla.org/en-us/KB/how-to-fix-preferences-wont-save

  Note: Some software, like Advanced SystemCare with surf Protection, can protect the files in the folder of Firefox profile against the changes. If you have this software, then check the settings or uninstall this software.

• Why firefox keep asking to update to 23.0.1 over and over again after doing the update? (win 7 Home Prem)

  Updated until V23.0 apparently without any problem (23.0 shown on Firefox/help/in words), get the update to 23.0.1, now I install it and everything seems fine, then the next day, I still get another update query to 23.0.1. Now at least 5 iteration. Op system is Win 7 Home premium.

  Hello, please try to download the full installer for firefox https://www.mozilla.org//firefox/all/ 23.0.1 and simply install on top of your current version (all your personal data - bookmarks and passwords will be stored by this procedure).

• Why Firefox keep loading with the Add-ons Manager each time? I disabled all extensions and themes with nothing will do, loaded in safe mode, etc.

  As noted, google it and saw that it is supposed to work if you disable extensions to see if you have a problem (he was not) and use the default theme, it is supposed to make them disappear. Even ran in 'safe mode '. Yet, EACH TIME it loads the add-on Manager. Should I re - download?

  Do NOT reinstall Firefox. Think it fixes the problems, but it isn't really.
  Try to restore Firefox to the factory settings. Discover how to reset here:

  https://support.Mozilla.org/en-us/KB/reset-Firefox-easily-fix-most-problems?ESAB=a & s = Reset + Firefox & r = 1 & s = ACE

• Why Firefox keep save my last sites traveled as a group and then open this group when I start next time? It will not stop, and I get really mad

  Every time I close Firefox and I have a tab open, it records the tab as if I had recorded as a group and it opens the next time I start firefox again.

  You can check the startup parameter:

  • Tools > Options > general > startup: 'When Firefox starts': 'Show my home page' "show a blank page.

• Why Firefox keep showing a strange police cursive for certain sections of text on websites like Wikipedia?

  For past month or two, when I consult Wikipedia a few other sites, sections of text are displayed in a large, cursive font. I can't find any rhyme or reason to what sections show this way. This isn't the case at all sites but there are a couple where I'm the see. This makes things really difficult to read. For a screenshot, see this file I put on YouSendIt , YouSendIt.

  Such behavior is usually caused by another font that does not work and that Firefox replaces with the following font in the list. In this case, you can check the Arial Cursiva police.

• Why Firefox keep insisting that I updated to 5.0 when I have already done many times?

  don't know what to say more

  It seems that the update was not successful because your list of "More system details" still shows a version of Firefox 4.0.1.

  Download a new copy of Firefox and save the file to the desktop.

  • Firefox 5.0.x: http://www.mozilla.com/en-US/firefox/all.html
  • Uninstall your current version of Firefox.
  • Do not remove the data of a personal nature when you uninstall the current version.

  Delete the program folder Firefox before installing newly downloaded copy of the Firefox installer.

  • It is important to remove the Firefox program folder to delete all the files and make sure that there is no problem with the files that were the remains after uninstallation.

  Your bookmarks and other profile data is stored in the Firefox profile folder and will not be affected by a relocation, but make sure that you do not select delete data of a personal nature if you uninstall Firefox.

• Why firefox keep ask permission whenever he starts, he has never before?

  I use Windows 7 and recently used CCleaner to clean my registry and Firefox is now asking for permission to make changes to my computer whenever he starts. I checked for viruses and malware, tried to run Firefox as administrator, removed all but one of my modules, but nothing help. Any suggestions?

  Check that you are not Firefox running as administrator.
  
  Right click on the desktop Firefox shortcut and choose "Properties".
  
  In the Compatibility tab, make sure that this level of privilege: "Run this program as an administrator" is not selected.
  
  You should also check the firefox.exe program properties in the Firefox program directory.
  
  If you can't make the changes, then you must start Windows Explorer as an administrator.

• Why firefox keep my loading home page

  Whenever I have sign on my laptop and go to my homepage (xfinity.com), Firefox leaves a message showing, he stopped this page automatically load. How to stop it and leave my home page load up?

  Type of topic: preferences #advanced in the address bar. Under Advanced, select General disable warn me when Web sites try to redirect or reload the page

• I currently have Firefox 9.0. Why the start page for firefox keep telling me that I don't have the latest version?

  I currently have Firefox 9.0. Why the start page for firefox keep telling me that I don't have the latest version?

  You may need the old start page. Go to Firefox > Options and in the pane general, under Startup, click on restore by default. The page you have probably (http://google.com/firefox) only served to 3.6 (and tells you you are outdated), but some users seem to have gotten stuck on it after updating to Firefox 4 or upper version.

• Why firefox has become bloated and lazy like IE?

  I tried like hell to stick with firefox, but it became useless.

  Installation of costs, on a new installation of operating system on a PC with 8 cores@3ghz and 32 GB of ram, and firefox is STILL SLOW!

  More than 10 tabs == random crash for a few seconds / minutes
  Have more than 5 tabs and close one that it blocks a few seconds to a minute.
  Have more than 10 tabs open, select "Close other tabs" after the tabs, FF hangs for 30-90 seconds.

  After the closure of the tabs, CPU utilization pulls up to this core... I say for this kernel, because the limit of mozilla firefox for one heart, which wouldn't be so bad, except EVERYTHING ON THE SYSTEM HANGS waiting for THAT ONE CORE to CATCH THE FUCK UP!

  Add on top of that firefox looking more and more like the chrome... I mean.. Firefox is essentially like having the version slow, delayed, shit smell of chrome...

  PLEASE GO BACK TO WHAT MADE YOU FAMOUS!

  A light and fast browser.

  NOBODY WANTS OR NEEDS ALL THAT USELESS GARBAGE YOU KEEP SHOVELLING AWAY!

  Here's an idea, before avant d' ajouter to add more code buggy nonsense that serves nothing real other than to make you look more like a bastardised version of chrome, why don't you actually fix crap buggy, slow garbage code have already set you up?

  STOP TRYING TO BE LIKE THE CHROME! IF I WANTED CHROME FUCKING, I HAD TO INSTALL IT!

  If the next version of Firefox is nothing else than to fix the many problems causing slow performance and high CPU usage, I'll be moving to chrome and leave Firefox and Mozilla to continue its business of a slow and painful death walk down.

  @the-edmeister thanks for the typical canned answer, I am pleased to see that copy - paste works always.

  Canned responses do not work, because the situation is based on a new installation of the operating system and a new installation of firefox.
  All the drivers on the system is new and up-to-date.

  I ALWAYS run through the basic troubleshooting list. If I had found a solution for poor performance and hogging CPU memory/crappy, I him have not posted here.

  @jscher2000
  Thanks for the link, but I had already tried it, work with no joy.

  As for the rest of the answer, I have a few comments and questions:

  Statement: "Mozilla's mission is to drive the web forward, which is to introduce new technologies constantly in Firefox."

  Comment: Change the GUI to work and look like Chrome is not new and innovative. It is simply duplicating someone else's ideas.

  Statement: "at the same time, developers constantly working to improve the efficiency of memory."

  Comment: since when? Over the years, whenever FF has "updated" the memory usage has increased. On rare occasions, it has also introduced memory leaks, or attempted to hide or split to its own use of memory in the secondary threads... plugin-container for a good idea, is an example that has been poorly implemented.

  Statement: "because the browser code is open source, others have used it to create products that look more like older versions of Firefox, or gathered for 64-bit systems, etc..". You can check those and decide if they are more productive for you than the official version. »

  Question: Where might these alternatives. Simply Googling turns a myriad of other browsers, Chrome for most of the results. Versions of firefox based very little I could find are the pale Moon and waterfox.
  Others are based on the FF are for most * nix flavors or specialized for users of niche such as cat and iceweasle for gnu and debian ice respectively, and wyzo based on niche media downloads.

  I understand that Firefox is open source, and if I had the time team, Fund and development to devote to creating a browser standard, basic, no frills, using their source, I would have already.

  My problem is not with Firefox itself, but the struggle continues Mozilla comply Firefox for chrome UI, while gradually adding bloat, instability and some "features" unnecessary which are not needed or requested by users.

  I get that Mozilla tries to innovate. But adding bloat and tracking features of data or features that cannot be used unless the tracking data is enabled is a huge slap in the face of almost all those who have started using firefox because it objected to these measures implemented in other browsers at the time.

  The entire reason why firefox became so popular was because it worked, was quick and did not use all of the system cpu and ram. Why? because at that time, it had all the bells, whistles, gadgets, door knockers, the banana seat, ape-hanger handlebars and a chrome-plated stand... Remove all trash, and the browser would be more likely to cut its use of CPU and memory in two, if not more.

  And Yes... This has turned into a feedback session.
  No, I didn't intend to let him be.
  No, I will not create a survey of 'feedback '... I've done done several times over the years, and as is typical of mozilla, they simply ignore it and do the opposite.

• Firefox keeps crashing on youtube

  See the report below:

  I downgraded and updated to firefox and adobe flash, but firefox keeps crashing on you tube

  AdapterDeviceID: 0x2e32
  AdapterVendorID: 0x8086
  Add-ons: support%40lastpass.com:2.5.0,anttoolbar%40ant.com:2.4.7.8,firefox1%40myibay.com:1.3.5,foxmarks%40kei.com:4.2.3,LogMeInClient%40logmein.com:1.0.0.1024,personas%40christopher.beard:1.7.2.1,testpilot%40labs.mozilla.com:1.2.2,%7B4BBDD651-70CF-4821-84F8-2B918CF89CA3%7D:7.3.0.1,%7B62760FD6-B943-48C9-AB09-F99C6FE96088%7D:2.5.7,%7Ba0d7ccb3-214d-498b-b4aa-0e8fda9a7bf7%7D:20130515,%7BAE93811A-5C9A-4d34-8462-F7B864FC4696%7D:4.16,%7Bef4e370e-d9f0-4e00-b93e-a4f274cfdd5a%7D:1.4.9,%7BF8A55C97-3DB6-4961-A81D-0DE0080E53CB%7D:0.9.8,%7B972ce4c6-7e08-4474-a285-3208198ce6fd%7D:23.0.1,bookmarkdeduplicator%40foxhatdev:1.2,%7Bd10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d%7D:2.3.2
  AvailablePageFile: 4035756032
  AvailablePhysicalMemory: 2020319232
  AvailableVirtualMemory: 1566806016
  BuildID: 20130814063812
  CrashTime: 1377265088
  EMCheckCompatibility: true
  InstallTime: 1377257514
  Notes: AdapterVendorID: 0x8086, AdapterDeviceID: 0x2e32, AdapterSubsysID: 2e321849, AdapterDriverVersion: 6.14.10.4990
  D3D10 Layers? D3D10 Layers- D3D9 Layers? D3D9 Layers-
  ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384}
  ProductName: Firefox
  ReleaseChannel: release
  SecondsSinceLastCrash: 6450
  StartupTime: 1377264388
  SystemMemoryUsePercentage: 42
  Theme: classic/1.0
  Throttleable: 1
  TotalVirtualMemory: 2147352576
  URL: https://apis.google.com/u/0/_/widget/render/comments?first_party_property=YOUTUBE&href=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DfgjGBtTjywY%26list%3DPLsADJVRCDaNYpbMjbOHdSCSaKBlG6aOL5&owner_id=Rpbrf-LDcVa7R8nCH4Nmjw&query=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DfgjGBtTjywY&stream_id=UCRpbrf-LDcVa7R8nCH4Nmjw&substream_id=fgjGBtTjywY&view_type=FILTERED_POSTMOD&width=590&dl=true&youtube_video_acl=PUBLIC&hl=en_US&origin=http%3A%2F%2Fwww.youtube.com&gsrc=1p&jsh=m%3B%2F_%2Fscs%2Fabc-static%2F_%2Fjs%2Fk%3Dgapi.gapi.en.frJMbC5LyzM.O%2Fm%3D__features__%2Fam%3DIA%2Frt%3Dj%2Fd%3D1%2Frs%3DAItRSTMLCe1riklf82eONwSEM0M5ZUH51A#_methods=onPlusOne%2C_ready%2C_close%2C_open%2C_resizeMe%2C_renderstart%2Concircled%2Conthumbsup%2Contimestampclicked&id=I0_1377265086581&parent=http%3A%2F%2Fwww.youtube.com&pfname=&rpctoken=12418239
  Vendor: Mozilla
  Version: 23.0.1
  Winsock_LSP: SBLSP over [MSAFD Tcpip [TCP/IP]] : 2 : 1 :
   SBLSP over [MSAFD Tcpip [UDP/IP]] : 2 : 2 : C:\Program Files\SpeedBit Video Accelerator\LSP3.3.7.5\sblsp.dll
   MSAFD Tcpip [TCP/IP] : 2 : 1 : %SystemRoot%\system32\mswsock.dll
   MSAFD Tcpip [UDP/IP] : 2 : 2 : %SystemRoot%\system32\mswsock.dll
   MSAFD Tcpip [RAW/IP] : 2 : 3 : %SystemRoot%\system32\mswsock.dll
   RSVP UDP Service Provider : 6 : 2 : %SystemRoot%\system32\rsvpsp.dll
   RSVP TCP Service Provider : 6 : 1 : %SystemRoot%\system32\rsvpsp.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{E164C867-4D50-4C52-BAC3-4E20530E992B}] SEQPACKET 11 : 2 : 5 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{E164C867-4D50-4C52-BAC3-4E20530E992B}] DATAGRAM 11 : 2 : 2 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{97161BE5-3B9E-47E8-B980-EA7DAA62DDD8}] SEQPACKET 10 : 2 : 5 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{97161BE5-3B9E-47E8-B980-EA7DAA62DDD8}] DATAGRAM 10 : 2 : 2 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{10C212A4-FBEE-4DE8-B928-1C0421C69529}] SEQPACKET 9 : 2 : 5 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{10C212A4-FBEE-4DE8-B928-1C0421C69529}] DATAGRAM 9 : 2 : 2 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{BF2F0D6D-1A1F-4AB8-A162-1FEED1D4AC4E}] SEQPACKET 8 : 2 : 5 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{BF2F0D6D-1A1F-4AB8-A162-1FEED1D4AC4E}] DATAGRAM 8 : 2 : 2 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{8D29FEF0-359F-4B69-AFEF-C50B2471838A}] SEQPACKET 7 : 2 : 5 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{8D29FEF0-359F-4B69-AFEF-C50B2471838A}] DATAGRAM 7 : 2 : 2 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{332CDF34-1668-499D-B938-3C7842374389}] SEQPACKET 4 : 2 : 5 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{332CDF34-1668-499D-B938-3C7842374389}] DATAGRAM 4 : 2 : 2 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{D2A13987-3800-4EB8-84D9-8DE3D55F77C2}] SEQPACKET 0 : 2 : 5 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{D2A13987-3800-4EB8-84D9-8DE3D55F77C2}] DATAGRAM 0 : 2 : 2 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{76C9ACD6-1523-430F-8AD0-C5B3A0A32103}] SEQPACKET 1 : 2 : 5 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{76C9ACD6-1523-430F-8AD0-C5B3A0A32103}] DATAGRAM 1 : 2 : 2 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{A56FF020-3C58-4D13-9C47-8CCDAE85B219}] SEQPACKET 2 : 2 : 5 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{A56FF020-3C58-4D13-9C47-8CCDAE85B219}] DATAGRAM 2 : 2 : 2 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{36E39A50-00A0-42CF-9B86-EE44F078CFFD}] SEQPACKET 3 : 2 : 5 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{36E39A50-00A0-42CF-9B86-EE44F078CFFD}] DATAGRAM 3 : 2 : 2 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{E204AC2F-D7F5-446D-B065-E6003AE73A92}] SEQPACKET 12 : 2 : 5 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{E204AC2F-D7F5-446D-B065-E6003AE73A92}] DATAGRAM 12 : 2 : 2 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{6FF8C4A7-7C88-46CC-BDA7-074EABC9BD52}] SEQPACKET 13 : 2 : 5 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{6FF8C4A7-7C88-46CC-BDA7-074EABC9BD52}] DATAGRAM 13 : 2 : 2 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{038B1489-B95F-4C31-A6D2-CF62704AA051}] SEQPACKET 6 : 2 : 5 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{038B1489-B95F-4C31-A6D2-CF62704AA051}] DATAGRAM 6 : 2 : 2 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{811A7B52-429D-4330-BCF5-5FF95C8392A5}] SEQPACKET 5 : 2 : 5 : %SystemRoot%\system32\mswsock.dll
   MSAFD NetBIOS [\Device\NetBT_Tcpip_{811A7B52-429D-4330-BCF5-5FF95C8392A5}] DATAGRAM 5 : 2 : 2 : %SystemRoot%\system32\mswsock.dll
   SBLSP : 2 : 0 : C:\Program Files\SpeedBit Video Accelerator\LSP3.3.7.5\sblsp.dll
  
  This report also contains technical information about the state of the application when it crashed.

  Great, thanks for posting back. I will mark your answer as the solution.

  Oddly even though I could see speedbit mentioned in your reports of incidents and the title of related bug I didn't see he's looking for to your system details side. It is a component of something else, or Firefox support simply not picked up and listed.

• Why sites keep telling me to update my browser when it is already updated? Example - what happens when I try to access my e-mail and other sites.

  Why sites keep telling me to update my browser when it is already updated? I already updated my browser and even tried to reinstall. Example - what happens when I try to access my e-mail and other trusted sites.

  Hello

  Some Firefox problems can be solved by performing a clean reinstall. This means that you remove Firefox program files, and then reinstall Firefox. Please follow these steps:

  Note: You can print these steps or consult them in another browser.

  1. Download the latest version of Firefox from http://www.mozilla.org office and save the installer to your computer.
  2. Once the download is complete, close all Firefox Windows (click on quit in the file menu or Firefox).
  3. Remove the Firefox installation folder, which is located in one of these locations, by default:
     • Windows:
       • C:\Program Files\Mozilla Firefox
       • C:\Program Files (x 86) \Mozilla Firefox
     • Mac: Delete Firefox in the Applications folder.
     • Linux: If you have installed Firefox with the distribution-based package manager, you must use the same way to uninstall: see Install Firefox on Linux. If you have downloaded and installed the binary package from the Firefox download page, simply remove the folder firefox in your home directory.
  4. Now, go ahead and reinstall Firefox:
     1. Double-click on the downloaded Setup file and go through the steps in the installation wizard.
     2. Once the wizard is completed, click to open Firefox directly after clicking the Finish button.

  Please report back to see if this helped you!

  Thank you.