Have you imported Adguard certificate manually after fresh install?I did a refresh of Firefox and then created a clean profile with no extensions and still got the error. Also Tried Firefox in Safe mode.
Also get the error in fresh install of Cyberfox.
And if you disable that bookmarks addon everything goes back to normal, right?
---------- Post added at 07:47 PM ---------- Previous post was at 07:47 PM ----------
Have you imported Adguard certificate manually after fresh install?
Could you please point me at it?Can't seem to find your reply about my other support ticket about the roomy bookmarks extension?