v3.x Rated 5 out of 5 stars

quick'n'dirty 3.x fix here -> http://it-centralen.dk/ffext/regularexpressiontester/1.1.6.13/get.html

This review is for a previous version of the add-on (3.0). 

New version in sandbox

Thanks sjoller for your contribution!
Though there is already a new version in sandbox (means, I uploaded a new version here, but the guys from Mozilla still need to check it).
Should be out the next days. If you're impatient have a look here:
https://addons.mozilla.org/de/firefox/addons/versions/2077
http://sebastianzartner.de/firefoxExtensions/RExT/