IE opens whenever I open Firefox

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• How to prevent the add-on compatibility checking whenever he opens Firefox?

  How to prevent the add-on compatibility checking whenever he opens Firefox?

  Which can be a problem with the compatibility.ini file in the Firefox profile folder.
  Try to rename (or delete) the file compatibility.ini in the profile folder of Firefox to see if that helps.

  You can use this button to go to the Firefox profile folder currently in use:

  • Help > troubleshooting information > profile directory: see file (Linux: open the directory;) Mac: View in the Finder)
  • http://KB.mozillazine.org/Profile_folder_-_Firefox

  Alternatively, you can check for problems with preferences.

  Delete possible user.js and files numbered prefs-# .js and rename (or delete) the file prefs.js to reset all the prefs by default, including the prefs set via user.js and pref which is no longer supported in the current version of Firefox.

  • http://KB.mozillazine.org/Preferences_not_saved
  • http://KB.mozillazine.org/Resetting_preferences

• Whenever I open Firefox, it works as it is downloaded a file.

  Whenever I open Firefox, a small box rises from the middle of the screen to the progress of the download arrow in the upper right of the Firefox window. I check the window of download progress and download anything, but everytime I open the app, it does. It's not use to happen. I use Firefox on a Mac 31.1. I've just updated to 31.1.1.

  You can view the downloads folder in the downloads (library) to see if there are unfinished downloads.

• I hear ads in the background, but you don't see them. This product whenever I open firefox.

  Whenever I open firefox, no matter what site I'm on, there are those ads that play in the background but I can't do them. I was wondering how I could get rid of them.

  then another thing, you could try is to reset firefox and see if that can solve the problem...

• The tab "Getting started with Mozilla Firefox" (as well as my default homepage on another tab) charge whenever I start Firefox. How can I stop this tab open at the start of the program?

  The tab "Getting started with Mozilla Firefox" (as well as my default homepage on another tab) charge whenever I start Firefox. How can I stop this tab open at the start of the program?

  If the above did not help, then also see the following articles for more suggestions:

  • https://support.Mozilla.com/kb/Firefox+has+just+updated+tab+shows+each+time+you+start+Firefox
  • http://KB.mozillazine.org/Preferences_not_saved

• I open firefox, I get my home page more 3 more. Whenever I hit the home button I get 3 more information on the tab bar and it is based in 3 whenever I hit the home button. It's never happened before. What should do?

  As I said whenever I open firefox I get 3 additional tabs to the home page. After that, whenever I hit the home button I get 3 more. Very fast, I got 1 million tabs and capabilities. I went to internet explore and connected and I have no problem. The only thing I can get from that is that I have a problem with firefox. I have been using firefox for a couple of years too.

  Thanks, Larry

  See https://support.mozilla.com/en-US/kb/How%20to%20set%20the%20home%20page and change your homepage settings

• Recently, whenever I try to open Firefox, I get a dialog box: Exc in ev handl: TypeError: brw is not defined (JavaScript Application). Firefox is certainly my default browser

  Question
  Recently, whenever I try to open Firefox, I get a dialog box: Exc in ev handl: TypeError: brw is not defined (JavaScript Application). Certainly, Firefox is my default browser.
  After clicking on OK Firefox opens.

  You can probably get rid of it by disabling McAfee Site Advisor ending Firefox and then restarting Firefox and the reactivation of McAfee Site Advisor, ending at Firefox and restart Firefox. But it would probably be best to uninstall Site Advisor and reinstall (as opposed to the update)...

  Please see the solution in http://kb.mozillazine.org/Problematic_extensions
  "McAfee Site Advisor.

  (Windows): for best results, you need to uninstall McAfee Site Advisor from Control Panel > add/edit programs (programs and features). Restart the system. Then http://www.siteadvisor.com/ reinstalling and reboot the system. Installation of other waste (crapware) suggested applications.

  Please mark "resolved" a response that will better help others with a similar problem - hope it was her.

• AFTER DOWNLOAD FIREFOX 6 I NOW GET THE MESSAGE ' TypeError: components.classes['@ [cid] is undefined "whenever I OPEN FIREFOX - WHY?

  Firefox seems to operate normally despite the error message. How can I prevent the message from happening whenever I open Firefox? The message is important?

  Probably caused by an incompatible extension.

  http://support.Mozilla.com/en-us/KB/troubleshooting+extensions+and+themes

• Whenever I open Firefox, I had a small window to appear and reports following error "TypeError; Components.classes['@ [' softage.ru/Skype FeExtensions; 1] is undefined

  Whenever I open Firefox, I had a small window to appear and reports following error "TypeError; Components.classes['@ ['softage.ru/Skype FeExtensions; 1] is undefined

  Remove/disable Skype add-on

  Uninstalling the modules

  • https://support.Mozilla.com/en-us/KB/uninstalling%20add-ons

  Cannot uninstall an add-on

  • https://support.Mozilla.com/en-us/KB/cannot%20uninstall%20an%20add-on

  Check and tell if its working.

• How can I eliminate the amns.startnow page whenever I open firefox/google?

  Whenever I open Firefox to my Google home page, StartNow is also in the toolbar. How can I stop this?

  I could also say that research | Firefox Help is also there and is redundant when the 'help' is also in the toolbar above.

  Launch of Firefox, navigate to a page, you want your home page, then open Options > general and click the button "use current Pages".

• I'm using firefox 5.0 & I use a master password. Whenever I open firefox, it asks the password. It happened not in previous versions. Is there a way to stop popping up everytime, rather than turn off the password

  I'm using firefox 5.0 & I use a master password. Whenever I open firefox, it asks the password. It didn't happen in the previous versions of firefox. I don't want to disable my master password. Is there a way to stop what is happening each time? Is this a bug in the new version.

  Start Firefox in Firefox to solve the issues in Safe Mode to check if one of the extensions of the origin of the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > appearance/themes).

  • Makes no changes on the start safe mode window.
  • https://support.Mozilla.com/kb/safe+mode
  • https://support.Mozilla.com/kb/troubleshooting+extensions+and+themes

• Whenever I try to open firefox, it is said that jqsnotify.exe is missing, but firefox open anyway. I recently downloaded a JDK. Could this be it?

  Whenever I try to open firefox, it is said that jqsnotify.exe is missing, but firefox open anyway. I recently downloaded a JDK. Could this be it?

  Try to disable the Java Quick Starter extension in tools > Addons > Extensions.

• Whenever I open Firefox, in any Web site, including the site of Firefox settings, an announcement I have to see it, and when I try to stop it, said ARE YOU SURE?

  Ok. Then when I open Firefox, I go to my home page. Then when I click on the button Search (before entering), it brings me to a different window of an advertisement. I tried advertising blocker, but there is absolutely nothing to prevent it from opening. On each page, when I click on anything, whether it's up a different window of an advertisement. Now, my other problem is, when I play a video on YouTube, Firefox is not responding. But then the video plays normally. In this case as, EVERY single video I watch it on Firefox. Solve the problem.
  And also, Shockwave Flash keeps "no answer / busy" almost on every page that I opened. other than YouTube and all related "google" pages

  Hi, sometimes a problem with Firefox can be a result of malware installed on your computer.

  You can try these free programs to search for malicious software that work with your existing anti-virus software:

  • Microsoft safety scanner
  • MalwareBytes' Anti-Malware
  • Anti-Rootkit utility - TDSSKiller
  • AdwCleaner (for more information, see this other AdwCleaner download page)
  • Hitman Pro
  • ESET Online Scanner

  Microsoft Security Essentials is a good permanent antivirus for Windows 7/Vista/XP, if you do not already have one. Windows 8 already has integrated antivirus.

  More information can be found in the article troubleshooting Firefox problems caused by malware .

  You must also update your Shockwave Flash Player (Ctrl + Shift + A > Plugins)

  This solve your problems? Please report to us!

• Whenever I open Firefox, a tab options that brings

  So, every time I open firefox my homepage opens properly, but also a tab options always comes with it. It doesn't, however, when I open a private window.

  You can check the setting of the homepage:

  • Tools > Options > general > startup: Homepage

  Firefox supports several home pages separated by ' |' symbol (pipe).

  • https://support.Mozilla.org/KB/how+to+set+the+home+page

• Whenever I open Firefox, a second tab 'Manage synchronization' opens automatically. Why is this happening?

  When I launch Firefox I have a tab that opens automatically take me to the window 'manage synchronization '. Today when I started Firefox it were two tabs "manage the synchronization. I don't know if it of a problem with 35.0.1 or not, but I just reinstalled windows on my desktop and laptops, and the tabs are open automatically on both systems. I don't see an option to prevent what is happening... whats going on?

  Hi stringboi,
  What settings are set to your homepage when you open Firefox?

• Whenever I open Firefox on my Mac, I tells me to upgrade, but when I press on install simply tracks and without finishing.

  Lately when I open Firefox, a dialog box appears informing me that I had to upgrade. But when I press on install what I get is a process that goes on and on and never ends. I had this happen several times and each time I finished around the top of the box to close and ending the process. It worries me because I fear that at some point, my version of Firefox will be so old that it will stop working. What can I do to make sure that the latest version is installed. I have a Mac Book with OS 10.6.8.

  David

  The details of your system indicates that you run that v14 FF is now v35

  Download Firefox full installation for all systems and languages {web link}