Sometimes all add-ons / extensions break randomly and are disabled (the icon of the extensions is also broken under "Manage Your Extensions").
The extensions are visible… (funda kabanzi)
Sometimes all add-ons / extensions break randomly and are disabled (the icon of the extensions is also broken under "Manage Your Extensions").
The extensions are visible under "about:addons", but the slider is turned off and the icon in front of each extension is broken / empty.
It seems that deleting these 2 files- compatibility.ini and extensions.json inside the firefox profile folder, usually fixes the issue. Only these 2 files though, don't delete anything else.
No need to mess around with the ff profiles or anything else, just deleting those 2 files and restarting the firefox usually fixes the issue with the "unregistered" addons.
This thread is for the search function, as I found some VERY old and outdated suggestions for the aforementioned issue using the search function.
I wonder what causes the extensions to "unregister" randomly.