Rated 5 out of 5 stars

Where did the icons go?
I'm using: Mozilla Thunderbird 86.0b3 (64-bit) and
QuickFilters 5.1
Thx!

Léirmheas ar leagan níos sine den bhreiseán seo (5.1).  Rinne an t-úsáideoir seo léirmheasanna eile ar an mbreiseán seo.

I am currently working on a version that works better with the beta version of Thunderbird. IF you want to use the current version 5.1 you can toggle browser.tabs.remote.autostart = false, or wait for a patch - for a trial version, see here:
https://github.com/RealRaven2000/quickFilters/issues/48