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

Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

can´t update my extensions

more options

I can't update my extensions in firefox. I get this message everytime (doesn't matter wich extension): "Firefox kan inte installera filen på https://addons.mozilla.org/_files/3590/fast_video_download_with_searchmenu-4.0.1-fx.xpi p.g.a.: Ogiltig filhash (möjligen en skadad filhämtning) -261" - which means something like Firefox can't install the file at :xxxxx.xpi because of ....... -261.


Please help me!

I can't update my extensions in firefox. I get this message everytime (doesn't matter wich extension): "Firefox kan inte installera filen på https://addons.mozilla.org/_files/3590/fast_video_download_with_searchmenu-4.0.1-fx.xpi p.g.a.: Ogiltig filhash (möjligen en skadad filhämtning) -261" - which means something like Firefox can't install the file at :xxxxx.xpi because of ....... -261. Please help me!

All Replies (2)

more options

This can happen if third-party cookies are blocked.

  1. In the Tools menu select Options to open the options window
  2. Select the Privacy panel.
  3. Check mark Accept third-party cookies.
more options

Thx, but that's already checked....

I don't understand the problem....??? I can install/update through the webadresses, but not with the normal update box built in firefox...?? Why?

Okulungisiwe ngu Need help, please!