It only works in simple Pages, that is, without frames or iframes or any other complex structure.

Doesn't work at all for me.

Seems to work. UI is a bit too clunky for my liking, but I only use this once in a while so it's fine.

Doesn't work for me

Has WAY better performance than the other regex search extensions I've found, especially on large pages!!! I appreciate the built-in regex cheat sheet, too.

Two downsides: It doesn't scroll to the results on the page, and I'd like a way to keep the extension open while interacting with the page.

Doesn't work. I couldn't get it to work at all even with simple searches.

It demands only one small permission, the permission to write data into the clipboard. An excellent example of a powerful app that asks for no security hole.

Pretty good, but, could you add options to customice the output? For example: add new line between each occurence in the result box, so we can copy one result per line. THANKS!

Thanks! I used to find videos with a lot of views on a Youtube page where sort by popularity wasn't displayed. For Youtube in French : [5-9][0-9]{2,}\s+k\s+vues

Well it works which is really nice but it can freeze the entire browser if you force it too much.