Question: is it confirmed that *no* addons work on Mozilla sites?

[bendover22]

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If absolutely no addons work on any Mozilla sites, it'll be kind of hard to remember to write messages in another app.

This wouldn't help every TAC user to avoid losing posts on Mozilla sites, but is it possible to dim the icon or turn it red & flashing if it can't save entries on particular sites? Or some notification.

[B00ze64]

If you add the following to user.js (or you make the change in about:config) you can run extensions on AMO:

user_pref("extensions.webextensions.restrictedDomains", "");
user_pref("privacy.resistFingerprinting.block_mozAddonManager", true);

Note that the 2nd one might not be needed, and you can edit restrictedDomains to retain stuff other than AMO if you want.

Regards,