This certainly works, but unfortunately it appears to have a lot of performance issues. Even when not in use it can cause pages to stop responding.

It also doesn't provide any feedback when an invalid pattern is used etc.

please add the next/previous match occurence as with normal ctrl+f, it is very much missing

Disappointing. Alternation with | doesn't work. Th extension's popup dialog hides half the page with useless controls when all I want is a functioning regex search.

Doesn't work. (No changes in last year - maybe it needs an update)

cant use multiple search highlight, like : i want to highlight "aaa", then i want to highlight "bbb", unfortunatelly all "aaa" highlighted words replaced by "bbb"

The best of its kind

This really doesn't work very well even though it give the illusion it is working correctly.

5 stars would be if the next time I hit command-F I could type in a regex and it would work as expected.

Instead you have to click on the extension, type in a regular expression. Hit enter. Oh wait that does nothing, you have to hit highlight. and then it doesn't scroll or let you do much with it just highlights.

You hit enter again it goes to the next one, nope.

And what the hell is save profile do, or what is it even for. Why is there some esoteric advanced functionality when the basics fail.

Fantastic! The only thing I could not figure out was how to jump to the next match in the actual webpage with my keyboard. Is it even possible?

Works great for me. Very thanks. The only wish is to add a hotkey or a separate button on the browser panel just for highlighting (to quickly highlight after reloading content on the page).

To other reviewers: Чтобы искать по всей странице достаточно поставить галку "Global" -_\

Нужен поиск по всей странице, это поделие не справляется с задачей, на странице с документацией (JavaDoc) ищет только в меню слева, сам текс документации - "не видит".

Regexes works with unexpected results, highlighting doesn't work, Reset button is dominant (UI is bad).

Was looking for a way to teach FF regex searching. This add-on does not seem to have any functionality? I click the icon and expect it to search on the open tab. Nothing. No idea what else it is supposed to do?

Ability to scroll between matches as in the regular Firefox search would make this extension much more useful. Right now trying to find something on a long page is really difficult.

works bad (tested on github source file)

This worked first time for me, excellent, the interface needs some more polish to be more user friendly, but I do suggest to stick with it.

The idea is good, a much needed extension after Mozilla killed all regex addons, but it doesn't work.
On my updated waterfox, (foo|bar) only worked once, but it only matched "foo"

An invaluable extension for me, the developer is a hero :)

Note that you can also use Ctrl+Shift+F to open the dialog. Press Enter in the regex box to search, Shift+Enter to highlight all matches.