Add-on compatibility check won't stop. Last time it was at 14 minutes before I stopped it.
That's pretty much it. When I try to open Firefox, the Update window pops up and it says "Checking your add-ons for compatibility with this version of Firefox", and then "This may take a few minutes". The last time I timed it, it was at 14 minutes before I canceled it to try something else.
- User Agent: Mozilla/5.0 (Windows NT 6.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.107 Safari/537.36
Go to Mozilla.org and download the full installer
If there is still a problem, Start Firefox in Safe Mode While you are in safe mode; Firefox Options > Advanced > General. Look for and turn off Use Hardware Acceleration.
I did download and reinstall Firefox to try to fix this; didn't work.
And I'm unable to open Firefox to change it to Safe Mode BECAUSE MY PROBLEM IS THAT FIREFOX WON'T OPEN.
Anyway, I'm having a blast figuring out how to use Chrome and trying to remember all my bookmarks. Awesome.
It is possible that there is a problem with the file(s) that store the extensions registry.
Delete the extensions.* files (e.g. extensions.json, extensions.sqlite, extensions.ini) and compatibility.ini in the Firefox profile folder to reset the extensions registry.
New files will be created when required.
See "Corrupt extension files":
If you see disabled or not compatible extensions in "Firefox/Tools > Add-ons > Extensions" then click the Tools button at the left end of the Search Bar to check if there is a compatibility update available.
If this hasn't helped then also delete the addons.json and addons.sqlite file.
You can also try to delete a possible user.js file and numbered prefs-##.js files and rename (or delete) the prefs.js file to reset all prefs to the default value.
Try this; Start your Windows computer in safe mode. Then try the above again.
Hi bigeasybroomsk,Firefox won't start - find solutions
These steps have worked in the past as well.
- Stop the Firefox process
- Turn off the wifi
- uninstall Firefox
- Turn wifi on
- Reinstall Firefox
Please make sure you are installing from http://www.mozilla.org/en-US/firefox/new/