Rated 4 out of 5 stars

Nice, I like the extra information. Any chance this will be a restartless extension in the future? Doesn't really make sense to have to restart Firefox for this. =)

This review is for a previous version of the add-on (1.0.1-signed). 

Perhaps

^
https://github.com/chengsun/moz-spdy-indicator/issues/1