You can achieve the same effect without installing any addon. Visit about:preferences#home
Uncheck everything except Top sites.
Re:Firefox 69.0 Released
by anewguy9000 on Tuesday September 03, 2019 @02:32PM
(#20869619)
the speed dial extension can do screenshots for thumbnails. and if you care about aesthetics at all it looks much nicer :)
https://addons.mozilla.org/en-CA/firefox/addon/yet-another-s...