Hi there, unfortunately this is caused due a Firefox bug which affects many extensions that use a similiar set of permissions. The bug has already been reported 8 months ago but Mozilla isn't doing much about it. See https://bugzilla.mozilla.org/show_bug.cgi?id=1851083.
Since there is no solution in sight, and your 2 star review was a painful reminder, I just have downgraded Trufflepiggy - Context Search(v0.9.11) to the old manifest version. So this should solve the issue for now.
You may wanna update your review once you are on the latest oldest version again. That would be helpful.
