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.

Avatar for Username

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

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

firefox 55 breaks all extensions 54 was fine. Tested with fresh vm, repeatable.

  • 3 fhreagra
  • 1 leis an bhfadhb seo
  • 10 views
  • Freagra is déanaí ó cor-el

mrg9999
mrg9999
more options

firefox 55 breaks all extensions 54 was fine. Tested with fresh vm, repeatable. 54 and below all my extensions lastpass, greasemonkey, tabmixplus etc all work. Tried installing them with fresh VM and they work. Update to 55, ALL extensions break.

Current fix is to stay at version 54.

firefox 55 breaks all extensions 54 was fine. Tested with fresh vm, repeatable. 54 and below all my extensions lastpass, greasemonkey, tabmixplus etc all work. Tried installing them with fresh VM and they work. Update to 55, ALL extensions break. Current fix is to stay at version 54.

All Replies (3)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
more options

LastPass has released a beta version that most users report is working with Firefox 55: https://addons.mozilla.org/firefox/addon/lastpass-password-manager/versions/beta

I am not having problems with Greasemonkey version 3.11. However, I do not have multiprocess enabled, which might make a difference.

If you require Firefox 54, you should use the last release version (54.0.1) instead of the beta 9 test version your Firefox indicated it is.

mrg9999
mrg9999 Úinéir na ceiste
more options

I'll try 54.0.1

Is there a way to get my extensions to work properly above this version?

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Why are you using an old Firefox 54.0b9 beta version and not the Firefox 54.0.1 release or the Firefox 52.3.0 ESR version that is still maintained with updates?

Firefox 52.3.0 ESR: