Join the Mozilla’s Test Days event from Dec 2–8 to test the new Firefox address bar on Firefox Beta 134 and get a chance to win Mozilla swag vouchers! 🎁

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.

addons could not be installed because firefox couldnot modify the needed file

  • 2 uphendule
  • 1 inale nkinga
  • 1 view
  • Igcine ukuphendulwa ngu cor-el

more options

When trying to install addons from firefox addons message states addons could not be installed because firefox couldnot modify the needed file operating system openSUSE -Leap-15.0 Regards Jamesxr600

When trying to install addons from firefox addons message states addons could not be installed because firefox couldnot modify the needed file operating system openSUSE -Leap-15.0 Regards Jamesxr600

All Replies (2)

more options

HI, could your security software be blocking anything ?

Have you tried Firefox in Safe Mode ?

In Firefox Safe mode these changes are effective:

  • all extensions are disabled (about:addons)
  • default theme is used (no persona)
  • userChrome.css and userContent.css are ignored (chrome folder)
  • default toolbar layout is used (file: localstore-safe.rdf)
  • Javascript JIT compilers are disabled (prefs: javascript.options.*jit)
  • hardware acceleration is disabled (Options > Advanced > General)
  • plugins are not affected
  • preferences are not affected

TEST''''is issue still there ?

As the next step will possibly be a Refresh.

more options

With a Legacy extension this message would suggest that the extension's XPI file needs to be unpacked. I don't know whether this still applies to WebExtensions. Dictionaries are another example of a file that needs to be unpacked.