We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Caută ajutor

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.

Află mai multe

Acest fir de discuție a fost arhivat. Adresează o întrebare nouă dacă ai nevoie de ajutor.

Firefox is opening incorrectly, the tab bar is tripled, and many of my add-ons are then disabled. Any suggestions?

more options

How can I get firefox to open correctly? It will sometimes, but most of the time it doesn't. I have been having this issue since version 19, but am now on the most current, and it is still doing it. I almost gave up on ff completely when nothing worked after the 19 update, but it seemed to get better with 20, but it still seems to be having trouble.

How can I get firefox to open correctly? It will sometimes, but most of the time it doesn't. I have been having this issue since version 19, but am now on the most current, and it is still doing it. I almost gave up on ff completely when nothing worked after the 19 update, but it seemed to get better with 20, but it still seems to be having trouble.

Toate răspunsurile (3)

more options

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do NOT click the Reset button on the Safe Mode start window or otherwise make changes.

You can check for problems with the localstore.rdf file.


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

Delete the files extensions.* (e.g. 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, not compatible, extensions in "Tools > Add-ons > Extensions" then click the Tools button at the left end side of the Search Bar ("Find Updates" button in older Firefox versions) to check if there is a compatibility update available.

If this hasn't helped then also try to delete the addons.sqlite file.

more options

Following the instructions to go into safe mode, default mode, then turning off application acceleration seems to have worked. Thank you good sir for your help.

more options

If Safe Mode works well, but you find that problems resume when you restart normally, try disabling all nonessential extensions. By nonessential, I mean you could survive 24 hours without them. Hopefully your most critical extensions are not a problem, and you will eventually discover the problem extension(s) as you re-enable the others when needed.

To manage extensions:

orange Firefox button (or Tools menu) > Add-ons > Extensions category