Rated 3 out of 5 stars

I was hoping this would be a suitable replacement for the excellent but no-longer-maintained "/find bar/" extension. However, the regular expressions in this engine are broken. Metacharacters like \b are ignored: "\bcell\b" matches "Excellent". Searching for "news.*" on a Google results page finds 0 matches, but searching for "news" finds many. Searches are done within the main browser thread and there is no way to stop them, so typing, say, "\w+" while you have "highlight all" on will lock up the browser for a very long time while it highlights every word, and you can't do anything but wait or kill the process. I do like the idea of the dictionary, and it may well be an excellent tool for Japanese/Korean/Chinese, but the broken regex engine makes it very sub-par for other languages.

This review is for a previous version of the add-on (0.11.16).