Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Add-Ons Problem

  • 7 பதிலளிப்புகள்
  • 1 இந்த பிரச்சனை உள்ளது
  • 9 views
  • Last reply by FredMcD

So I've been having a problem with Firefox. Every time I open Firefox the last add-on on the taskbar is grayed out and doesn't work properly, it also makes it impossible to open any website, it just load infinitely. I have disable/enable the last add-on on my task bar in order for Firefox to work properly. It's really annoying and it just started to be like that for about 2 week.

So I've been having a problem with Firefox. Every time I open Firefox the last add-on on the taskbar is grayed out and doesn't work properly, it also makes it impossible to open any website, it just load infinitely. I have disable/enable the last add-on on my task bar in order for Firefox to work properly. It's really annoying and it just started to be like that for about 2 week.

தீர்வு தேர்ந்தெடுக்கப்பட்டது

Ok, the problem was solved by creating a new profile. All of my extensions are working correctly.

Read this answer in context 👍 0

All Replies (7)

I forgot to add an image of the task bar. And it doesn't matter which add-on is the last one, it's always grayed out every time I re open Firefox

osc_ed_26 மூலமாக திருத்தப்பட்டது

It’s possible that there is a problem with the file(s) that store the extensions registry.

Type about:support in the address bar and press enter.

Under the page logo on the left side, you will see Application Basics. Under this find Profile Folder. To its right press the button Show Folder. This will open your file browser to the current Firefox profile. Now Close Firefox.

Windows: Show Folder; Linux: Open Directory; Mac: Show in Finder

Linux: Under the page logo on the left side, you will see Application Basics. Under this find Profile Directory. To its right press the button Open Directory.

Delete all extensions* files and compatibility.ini in the Firefox profile folder to reset the extensions registry.

New files will be created when required.

After, restart Firefox.

See "Corrupt extension files":

+++++++++++++++++++++++++++ You will have to approve the updating one last time.

OK I tried doing that and reinstalled all add-ons that I had. It looks like there is a problem with uBlock Origin and One Tab. Will see if those two have a support page or I don't know what else to try. One Tab and uBlock are showing grayed out like I sent in the screenshot above.

Keep us posted.

A post was flagged as Solved Problem. If the problem is not solved, please remove that flag. If you don’t, others that can help may not read this post.

Go to that message, and use the Undo link to its right.

Still no fix from OneTab or uBlock. Will keep replying if something helps

தீர்வு தேர்ந்தெடுக்கப்பட்டது

Ok, the problem was solved by creating a new profile. All of my extensions are working correctly.

That was very good work. Well Done.