1. Ad‑blocking & MV2 Deprecation
The community repeatedly warns that losing Manifest V2 (MV2) would cripple uBlock Origin and other filters.
“Maintaining both MV2 & MV3 support isn’t easily sustainable long term when you factor in the need to prioritize other features.” – devsda
“There is no feature Firefox provides that is more differentiating than uBlock origin.” – zephyreon
2. Multi‑profile / Multi‑container Workflows
Many users crave a more robust way to juggle separate logins and contexts without opening many windows.
“The multi user containers are also very nice.” – collabs
“I suggest to have a look at the underrated extension Sticky Window Containers.” – gawa
3. Distrust of Mozilla & Search for Alternatives A sizable portion of the discussion expresses waning confidence in Mozilla’s roadmap and looks to browsers like Brave, Vivaldi, or even experimental engines such as Ladybird.
“My last hope is ladybird right now… I don’t use Firefox or Chrome as my main browsers anymore.” – cookiengineer
“They try to make it feel like an ‘us’ browser, but it just comes off as a corp trying to talk cool.” – prox