Forum response - After 66.0.4 update Add-ons appear unsupported or disappeared

If your Add-ons are appearing as unsupported or disappeared from your about:addons page please try these steps.

Their data is not lost because it is stored locally on your profile directory. (Bug 1549129). Re-installing the add-ons will recover the data:

// These fine people helped write this article:Michele Rodaro, patrickmc. You can help too - find out how.

Was this article helpful? Please wait...

Volunteer for Mozilla Support