2024-08-27: I saw the Extension background take up 2 GiB in Firefox on my main Linux when I checked about:performance because of laggy browser behavior (it didn't cause the laggy behavior though - the update did).
Might be a fluke because the browser finished recompiling while running (Gentoo update).
2024-09-07: Definitely not a fluke. It's at 1 GiB again now (1.3.1.0 release on Firefox on Linux).
2024-08-27: I saw the Extension background take up 2 GiB in Firefox on my main Linux when I checked about:performance because of laggy browser behavior (it didn't cause the laggy behavior though - the update did).
Might be a fluke because the browser finished recompiling while running (Gentoo update).2024-09-07: Definitely not a fluke. It's at 1 GiB again now (1.3.1.0 release on Firefox on Linux).