@yora @fuopy i haven't found whether vivaldi will support manifest v2 independently of Google long-term, but from Reddit it appears that their built-in adblock falls behind youtube updates too often (ublock origin doesn't)
at this point it seems like our best bet would be firefox forks like waterfox or librewolf?
@fuopy didn't they get rid of this recently? Maybe I am misremembering.
Whatever the case, this has been a thing for years and is more or less a technical limitation. If you update Firefox on Linux while running it, it could theoretically start new processes with different libraries as the already running processes. The consequences are pretty much unpredictable (probably resulting in a crash most of the time). Of course there are chances of it just working fine, but the Firefox developers probably don't want to take that risk. Especially to avoid people reporting non-existent bugs.