Since today's update RGH doesn't work in my Firefox 73.0.1 (64-Bit) anymore :(
I can't tell what's wrong, cause there's nothing in the console.
The features aren't active in GitHub and the extension's settings are completely empty, though (my token is gone, etc.)

I tried disabling/enabling and uninstalling/installing it, but it doesn't help.
Just to add, I tried adding my token back and closing the preferences, but the extension also swallowed the token into the void :D
I'm on it
A non-supported regex appears in the code now and I'm looking for it. Firefox doesn't run any code when that happens
Reopening for visibility. 20.3.4 is already available and it should work: https://addons.mozilla.org/en-US/firefox/addon/refined-github-/versions/
I just installed the new version and its working again, even my settings are back :)
Thx for the quick fix, @fregante 鉂わ笍
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Reopening for visibility. 20.3.4 is already available and it should work: https://addons.mozilla.org/en-US/firefox/addon/refined-github-/versions/