Firefox 30.0 hangs Rated 1 out of 5 stars

Unfortunately, Html Validator is no longer a working add-on. Have not been using it for some time, but always had it activated. Using FF 'Customize' does not achieve desired results, as explained to the FF 29 user. Also, whenever 'Options' is selected Firefox simply hangs. No other tabs can be accessed. Have to use Windoze 'Task Manager' to force FF to close. My o/s Windoze 7 SP1.

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

Please mail me

Please mail me at explaining more about your issue. I am not aware of it. I got no other report of this issue. Also, I am running myself FF 30 on Windows 7 SP1 where it works. Ideally, you should try with a new FF profile, yours is probably corrupted.