works decently well for everything I've tried to use it with. That said, I did notice some problems while editing Wikipedia:
*opening the find/replace dialog under certain circumstances (such as when my view is assumed in) causes page elements to move/scroll (seems like it has something to do with highlighting the target text box)
*replacing things doesn't seem to be recorded in the undo/redo history
*although it appears to be only a visual bug (the text that gets changed matches the search term), it doesn't always highlight what it's actually going to change. This may have something to do with the shifting effect mentioned above, but it's hard to verify that in my position as a user. Good luck, developer.
The first when I could live with, but the second one and especially the last one in conjunction with it is, well, a bit hazardous if I can't undo what I didn't know I was going to be replacing. I can't in good conscience give this 4 stars if it risks replacing the wrong thing, even if the highlighting is purely visual and it replaces what actually matched. Sorry.

Do not work

Works perfectly! Great help!

Just perfect. Saves hours.

Excellent Addon for Evernote Web.

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

Would you consider removing the google analytics code?

Great add on. My only complaint is, why the shortcut is defaulted to the same as full-screen view on Mac? I mean, I would prefer it to search but Firefox makes it more complicated than it should be to change shortcuts. An override would be great. Regex > Fullscreen

Práctico y muy rápido.

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

"simply the best, better than all the rest
Better than anyone, anyone I ever met"

summed this addon up perfectly

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?

Thanks, works great! Favourites is a very good idea.

If you can enable it to find text in any web page (non edit field) as well (disable the replace field in this case),
then it will be a good replacement for all text search needs.

Also, it can then replace the "Findbar Tweak" extension (legacy),
thanks.

great job! easy to use!