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.

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

I cannot get my add-ons to install. I get an error message. I had 3.0.19 working fine and had to reformat and somehow it will not restore via mozbackup the original way I had it. What am I missing?

  • 8 replies
  • 14 have this problem
  • 6 views
  • Paskiausią atsakymą parašė Svetlana

more options

I am trying to mnaintain my sanity when browsing and had No-Script, Request Policy and Ad Block installed and working well. I made a mistake and some malware got in there. I reformatted my drive and tried to restore via Moz backup but it will not install any add-ons in ANY version I have tried thus far.

I am trying to mnaintain my sanity when browsing and had No-Script, Request Policy and Ad Block installed and working well. I made a mistake and some malware got in there. I reformatted my drive and tried to restore via Moz backup but it will not install any add-ons in ANY version I have tried thus far.

All Replies (8)

more options

To install an extension, please visit http://addons.mozilla.org , find it there by name and hit the big green install button. What happens?

more options

like I said, I get an error message when I try to install any of them. I tried to use a backup profile of version 3.0.19 that worked and now it will not install any and I mean ANY add-on. I get an error message telling me so.

more options

What is the error message?

more options

Might be totally unrelated to the problem you're having, but saying it since it's still important: you should definitely upgrade to Firefox 3.6 asap, as 3.0.x is no longer supported by Mozilla. This means that you're no longer patched for security holes and are exposed to online threats like viruses, etc.

Upgrading is easy - just go to mozilla.com and download the latest and greatest version of Firefox. Good luck!

more options

I did install the latest version. I have been defeated. I am driven crazy by flash ads that I formerly was able to block and not cannot. Have you ever tried to read a book with someone waving a hand in your face continuously? I still cannot get it to install ANY add-ons. Might I have a problem with the old profile that I restore to the new version??? I'm thinking that THAT might be the case. Any thoughts???

more options

Make a new profile and try installing add-ons there: Profile Manager - Create, remove or switch Firefox profiles

more options

I'll give that a burn. Thanks!

more options

Please let us know how that works.