Works well mostly, except on some websites it mangles the styling of some text input boxes so much that they become almost unusable.

Works very good in my Firefox (v.122), working in a MediaWiki envirionment.

Problem: Icon does not show in the toolbar.

Request: I would like to have the add-in window stay open, this would save a lot of key clicks.

It's quite good, well designed and very useful.

Would you consider removing the google analytics code?

Works fine most of the time, but on some websites it has trouble finding anything - I guess due to JS frameworks messing with the DOM. I don't really blame the add-on for that, although it would be nice if it could support those sites too.

perf.zone is a good test case, if you want to try to fix it

Very nice piece of work

If it had one more feature, it could be much much better: apply a set of favorite items in one click.

Can you publish this addon as Free Software and provide the source code on places like Github?
So, people like me, can contribute to it and make it even better?