Sweet! (+future feature?) Rated 5 out of 5 stars

Sweet add-on! I count it among my most fav ones. (I was spoiled by having the "Highlight Text" addon that's since, no longer supported)

feature request: ability to customize colors (Highlight Text had this) :^)

issue: on occasion, after I've selected a section of text, then click Highlighter, the highlight extends beyond the precise selected text; undoing it and selecting/clicking it results in the identical behavior.
caveat: I occasionally drag'n'drop text from a webpage, so it could be occurring with those; I'll have to monitor it further; [apologies if I missed the "support section" for issues]

Again, nice add-on! I appreciate it!!

This review is for a previous version of the add-on (0.6.4).