[burgerguy]

56.0 (64-bit), Win 10

[gpm]

That's a really old version of firefox, probably an API has changed with my workaround.

I know of an API change that means the official hotfix won't work.

My recommendation is to upgrade your firefox version.

[NopesNopesNopes]

Try WaterFox, its a FF56 "clone" with working addons.