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Hello.

After something i cant open Gmail in Firefox. But in other browsers all work fine. Youtube notices and comments under videos don't work, too.

I ask my frend to try open gmail in firefox and he opened it without problems. I don't want to reset firefox, because i don't want to lost all my settings.

Can you help me to solve this problem ?

Thanks.

Hello. After something i cant open Gmail in Firefox. But in other browsers all work fine. Youtube notices and comments under videos don't work, too. I ask my frend to try open gmail in firefox and he opened it without problems. I don't want to reset firefox, because i don't want to lost all my settings. Can you help me to solve this problem ? Thanks.

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You can try these steps in case of issues with web pages:

You can reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.

  • Hold down the Shift key and left-click the Reload button
  • Press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
  • Press "Command + Shift + R" (Mac)

Clear the cache and cookies only from websites that cause problems.

"Clear the Cache":

  • The image "new fx menu" does not exist. > Options/Preferences> Advanced > Network > Cached Web Content: "Clear Now"

"Remove Cookies" from sites causing problems:

  • The image "new fx menu" does not exist. > Options/Preferences > Privacy > "Use custom settings for history" > Cookies: "Show Cookies"

I see that user.js is active on Firefox

The user.js file is only present if you or other software has created this file and normally it wouldn't be there.

You can 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 including prefs set via user.js and prefs that are no longer supported in the current Firefox release. You can get to the profile folder below:

  • Help > Troubleshooting Information > Profile Directory > Show Folder

or

  • Go to about:support and click Show Folder next to Profile Directory.

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No. It didn't help.