Font Inspector (WebExtension) by Alex

2.5 Stars out of 5

4 reviews

Rated 5 out of 5
by 远离中共邪教快退出党团队, 22 days ago
Rated 5 out of 5
by 退出党团队远离中共邪教, 2 months ago
Rated 5 out of 5
by Firefox user 14748294, 6 years ago
Rocks Great ! Thanks from Brazil !
Rated 5 out of 5
by grahamperrin, 7 years ago
Working fine with Waterfox 56.2.1 (56.2.0.53) on FreeBSD-CURRENT.

Ideally suited to situations such as this:

https://github.com/MrAlex94/Waterfox/issues/664#issuecomment-397975609