Firefox does not open in full screen. I need to hover over the icon on the task bar and it will pop up in a small window.click on it, it automatically closes, again to hover. has started after clicked accidentally 'function' or 'windows' or 'alt' and BACK

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• Firefox does not open in full screen on the task bar and I have to go over it to see the web page.

  Firefox does not open in full screen on the task bar and I have to go over it to see the web page.

  Firefox window is sometimes "off screen" somehow. Often, you can force it to appear on the screen by right clicking on the thumbnail image just above the taskbar and choose expand. Does it work?

  A possible cause for this is that the file that stores the positions and sizes of window is corrupt. You can delete this file and Firefox will return to standard window resizing.

  #1 method: If you can get a zoomed window:

  Open the settings folder (AKA Firefox profile) current Firefox help

  • button "3-bar" menu > "?" button > troubleshooting information
  • (menu bar) Help > troubleshooting information
  • type or paste everything: in the address bar and press Enter

  In the first table of the page, click on the view file"" button. This should launch a new window that lists the various files and folders in Windows Explorer.

  Leave this window open, switch back to Firefox and output, either:

  • "3-bar" menu button > button "power".
  • (menu bar) File > Exit

  Pause while Firefox finishing its cleanup, then rename xulstore.json to something like xulstore.old. If you see a file named localstore.rdf, rename this to localstore.old.

  Launch Firefox back up again. Windows normally appear again?

  #2 method: If you can not get a Firefox window for all:

  Close Firefox by right clicking the icon in the taskbar > close all windows.

  Using the Run dialog box (windows key + R) or the start search bar menu type or paste the following and press Enter to drill down to the profiles folder:

  %APPDATA%\Mozilla\Firefox\Profiles
  

  Here you can see a folder - in this case, double-click that - or more than one case - in this case, double-click on in what looks like the most recently updated.

  Scroll down and rename xulstore.json to something like xulstore.old. If you see a file named localstore.rdf, rename this to localstore.old.

  Launch Firefox back up again. Windows normally appear again?

  Then, to re - light bars, you can use one of the following methods to view the list of the toolbar, and then select the desired bars it:

  • Right click on a place empty on the tab bar (or the button '+')
  • Press the Alt key to activate the classic menu bar > view > toolbars
  • in customize mode > show/hide toolbars (see: Customize Firefox commands, buttons, and toolbars)

  To activate the menu bar, toolbar bookmarks or other bars, click it in the list.

• Firefox does not open. Hangs during 'connection '. Inadmissible even in the process of closing via the Task Manager.

  Yesterday, Firefox does not open. It hangs at the "stage of connection." For hours. It doesn't even turn off using the Manager of tasks for applications or processes, and it hangs almost all other applications. I thought that I managed to save a Word document opened yesterday - it looked like a slow, but normal save during the shot of Firefox, but the document was empty when I restarted my computer.

  Although my machine is not pentium 4 in service, I tried to start by using the configuration of Windows XP/M, I downloaded and re-installed (above) the existing version, I checked that no process of Mozilla turned before trying to start Mozilla and tried to create a new profile. Absolutely no success. Every time (dozens), I tried to start Firefox, I had to force a difficult to exit the application shutdown. I now have this marking Firefox in my taskbar, because I keep forgetting and hit by reflex.

  I am running version 11.0 (at least that's what I just downloaded - I am not positive of what I was running yesterday). My system is Windows 7 Home Premium, Intel Core i3 2.4 gHz, 4 GB of RAM, 64 bit OS.

  Next option is to restore to an earlier version. If this does not work, I uninstall and start again from scratch.

  I disabled AVG (antivirus free 2012) for 10 minutes, open Firefox and browsed a bit. Close the browser, whereas the temporarily disabled AVG activated itself again and restarted Firefox. Now, it connects perfectly - several times faster than prior to this incident (I have installed v 12.0; previous version was 11.0). I use the Microsoft Firewall, if while the firewall solution suggested above has not worked, he put me on the right track.

• Firefox does not open a new tab page, but if I use the "right mouse botton"-> "Duplicate tab" as it opens a new tab how can I solve this?

  Firefox does not open a new tab page, when I click on the small + firefox does not respanw, but if I use right mouse botton -> tab double as it opens a new tab how can I solve this?

  Uninstall the toolbar Ask and it should work again. There is a compatibility issue with the Ask and Firefox toolbar that prevents the opening of new tabs.

  There are a few places to check for the Ask toolbar:

  • Check the control panel Windows for the Ask Toolbar - http://about.ask.com/apn/toolbar/docs/default/faq/en/ff/index.html#na4
  • Also check your list of extensions, you may be able to uninstall it from there - https://support.mozilla.com/kb/Uninstalling+add-ons

• The size of my custom start page is limited to the size (length) of his tab and does not open format full screen.

  The start page is glued on its tab and will only change the size with an arrow of sliding between the tongue and the following.

  Opening in the sidebar is the default value for the bookmarks created via a link or a button on a Web site.
  
  You can view the properties of a bookmark using the context menu in the side bar (Ctrl + B).
  
  In the Bookmark Manager (bookmarks > organize bookmarks) you can click on the button more in the lower details pane on the right.
  
  Make sure "Load this bookmark in the sidebar" is not selected.

• Firefox does not open PDF in preview as it is defined in the preferences

  Preferences > Applications > Content Type: Portable Document Format (PDF)... Action: Use Preview (by default) or Action: Preview in Firefox or Action: always ask

  Same result: dialog box that says: "you have chosen to open (filename)...". Which is: (file type)... From: (URL)
  You want to save this file? "The options are to save the file or cancel. There is no way to actually open the file without saving it first. I don't want to save the file.

  Delete the mimetypes.rdf file in the closed with firefox profile folder, see below to find the profile, then reopen FF and change the options in the menu of the application.

  • = > > > > > Profiles - where Firefox stores your bookmarks, passwords and other user data

• Firefox does not open, and when I try to use the "run", it says that the file has been moved, etc. I use Windows 8 and I can't lose my favorites. Help?

  Firefox has been great to work on my computer for months and then suddenly he could not load pages. So, naturally, I restarted my computer, but when it restarted Firefox does not open. The icon lights for a bit as usual, then it fades and never actually opens. When I try to use the "run" command, I get this error:
  "C:\Program Files\Mozilla Firefox\ refers to a location that is unavailable. It could be on a hard drive on this computer or on a network. Make sure that the disc is inserted correctly, or that you are connected to the Internet or your network, and then try again. If it can't be located, the information may have been moved to another location. »
  I also tried the same thing for the file in the x 86 folder, but it gave the same error and I went and looked for the files in the given location and they were there.
  Firefox is not to fall down, so he isn't there an other error message, I can give you.
  The things that I had my favorites are really important, I can not lose those, but I am fine with anything else have to re-installed, etc..
  Help please?

  I've never tried it myself, but the forum has a series of measures for a "clean reinstall" Firefox. Even if you do not delete the record of your personal settings (AKA profile) during this process, a backup of this folder is always a good idea in case something goes wrong.

  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!

• Firefox does not open after the update. Cannot open the profile technical, even when you use the directory in cmd line path

  I'm using Firefox on a Windows 7 computer. Firefox does not open after the last update. I read the help articles and it seems that I need to create a new profile because my settings were probably corrupted. I'm unable to open the profile technical, even when you use the directory in cmd line path. I tried the following commands in the command line:

  Firefox Pei
  "C:\Program Files (x 86) \Mozilla" PEI

  Nothing happens with every order.

  I am also running Norton Internet Security. I read a help of virtual navigation features Re article that can cause a problem. The article says to check the setting of virtualization in the internet security software and to clear the virtual cache. I went through all the menus of settings in Norton Internet Security version 21.6.0.32 and I don't see anything that looked like in "virtualization" settings, so I guess that does not apply to me. "

  If you have any ideas, I had appreaciate that your expertise!

  Hello arcandl, at the launch of the firefox is not after you double-click the shortcut, it is sometimes also a sign of active malware on a system.
  you might want to try running a scan with some various other security like the free version of malwarebytes and adwcleaner tools that are specialized to remove the adware and browser hijackers.

  Fix Firefox problems caused by malicious software

• Firefox does not open, no matter how many times I click on it.

  Firefox does not open. I tried troubleshooting, I tried right click and click on "Run As Administrator" and I tried to uninstall and reinstall. When I try to open it, it does not come to the top with error messages or anything. The loading icon appears and then disappears, without opening of firefox. Nothing I try Open firefox.

  Trying to open Firefox in Mode safe mode does not work. From my laptop in safe mode with setting network opened firefox for a while, but then it stopped working again, and it turned off my wireless on my laptop card (that I put back on after some research). I killed firefox using the process in the Task Manager tab and uninstalled successfully. I'm put it back, now, I hope it works.

• Firefox does not open new tabs whe I right click and ask then?

  Firefox does not open a new tabs when I have so much demand by right click and choose 'new tab '.

  He has always worked until today?

  I was not at work on Monday, so I don't know if that's a problem then.

  There is an incompatibility reported Firefox 3.6.13 with the Ask toolbar. Until Ask resolves the problem, disable or uninstall the Ask toolbar. See:

  • http://support.Mozilla.com/en-us/KB/uninstalling+Add-ons
  • http://support.Mozilla.com/en-us/KB/cannot%20uninstall%20an%20add-on

• Firefox does not open a PDF link in the browser, the screen shows simply empty.

  Firefox does not open a PDF link in the browser, when I click on the link that the screen just a blue screen.

  
  

• After you download the update of Firefox 25.0.1 Firefox does not open. Help! Thank you!

  I downloaded the update for 25.0.1 and he ran. Instead of restarting, I stop the laptop (Vista Home SP2, 64-bit).
  When I started the laptop again, I tried to open Firefox, but Norton Internet Security leader Insight could not check the update as a reliable file and did not allow for Firefox open.
  I tried to disable file Insight but got the same results.
  I ran Live Update to update Norton Internet Security and then tried to open Firefox again.
  This time this Norton Internet Security displays a message saying that updater.exe wasn't careful and eliminated.
  When I try to open Firefox, Norton now detects Updater 25.0.0.5046, said he trusted, but Firefox does not open.
  I want to save the history if possible.
  How can I get Firefox to work with recorded history again?
  Thank you!

  Hi iamjayakumars - I was not able to create a new profile, because the Profile Manager does not open. A message from Norton seems "Updater.exe is sure.", but nothing else would happen.
  But - the links you sent were very helpful, and I was able to solve the problem by making a UN-installing and then re - install Firefox:
  1. backup of the profile.
  2. download the installer of Firefox from Mozilla.org with another browser.
  3. un-install Firefox from the control panel (ensuring "Delete my personal Firefox and customizations data" was NOT selected.)
  4 reinstall Firefox.
  Firefox starts successfully with all my old settings and all the tabs I had open the last time it was used appeared as I had hoped.
  Thanks a lot for your help!

• Firefox does not open, but is rather the error message "Unable to read the configuration file." He has worked in the past, but not now.

  Firefox does not open, but is rather the error message "Unable to read the configuration file." He has worked in the past, but not now.

  I REINSTALL 10 TIMES SO DON'T TELL ME THAT!
  I'm piss because I need firefox work again, so I can finish my reseaching in 5 days.

  
  

• Firefox does not open a link after the first; Open ok in new tab front.

  In the last week or two, for reasons not clear to me, Firefox does not open the new links after the first; It is used to open a new connection in new tabs (according to my preference) without problems in the past. Now it does not blink again.

  Over time, I've added new applications and others removed, and, of course, I can't exclude from their role in the problem that I have now. I would appreciate some help to solve this problem.

  You have this problem when running in Firefox SafeMode?
  
  http://support.Mozilla.com/en-us/KB/safe+mode
  
  Do not choose anything at the moment, just use 'continue in safe mode.

  If this is not the case, see this:
  
  http://support.Mozilla.com/en-us/KB/troubleshooting+extensions+and+theme...

• Firefox does not open links when I click on them! How can I fix?

  When I click on a web page and links to something, Firefox does not open them. No matter what page I'm on.

  You have this problem when running in Firefox SafeMode?
  
  http://support.Mozilla.com/en-us/KB/safe+mode
  
  Do not choose anything at the moment, just use 'continue in safe mode.

  If this is not the case, see this:
  
  http://support.Mozilla.com/en-us/KB/troubleshooting+extensions+and+theme...