3 ms·

I just set xpinstall.signatures.required to True in about:config and that fixed it after a restart.

• drewmol 7y ago
  For me this is False ;-)
  • dveditz_ 7y ago
    Are you using an Extended Support Release (ESR)? That's expected then.
• TheRealPomax 7y ago
  but only for dev/beta/nightly. Note that this won't work for the standard version of FF.
• ddtaylor 7y ago
  AFAIK that only works for the nighty/dev versions.
• gpm 7y ago
  Curious, that shouldn't work on branded stable installs.
  • thekyle 7y ago
    It works on Linux but not Windows or Mac installs. I assume that repo maintainers use different compiler options than the official Firefox binaries.
• brezelben 7y ago
  Worked for me on Linux, didn't even require a restart (some addons just reappeared immediately). Using Firefox from Ubuntu package management.
• pfeerick 7y ago
  I can confirm this on Ubuntu 19.04 with Firefox 66.0.3. Changing xpinstall.signatures.required from the default 'True' to 'False' resulted in addons working again.
  • kgwxd 7y ago
    Android too.