Rated 1 out of 5 stars

Doesn't work - but it used to. Right now it always shows "The entered string is not a regular expression!" no matter what you put in. It must not be compatible with the latest firefox updates.

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

Please update RExT

I guess you're using Mac OS? As mentioned at Marcel's comment, there's a bug with Java Embedding Plugin. Please try out the new version of RExT. If you're not using Mac OS, please update your Java Plugin. This should fix the problem. If not, please let me know.