- Rated 3 out of 5by Lee Jackson, 5 years agoThe app does what it says it does, but it doesn't let you access the settings or anything else on the right side toolbar. You either get errors or you get a blank box that disappears after a few seconds.
- Rated 3 out of 5by Olgar, 6 years agoThe extension is very useful for people who are curious about what font a page is using. However, my problem is that it slows Firefox down dramatically on my computer (Fedora 22, Firefox 39, 2.2 GHz dual-core with 2 GB RAM). I know, not a high-end machine, but without this extension, everything is pretty snappy. I use several other extensions and none of the others have this problem.
Developer responseposted 6 years agoThis is the simplest of all extensions with barely 50 lines of code and only has access to webmail sites - so it's probably not the culprit or you would see many more reviews like this one.