Rated 3 out of 5 stars

this addon don't block webm, but only javascript ... same function stands up for yesscript ( https://addons.mozilla.org/cs/firefox/addon/yesscript/?src=search ), yesscript works globaly ... but still, 3 stars for automation of this :)

This review is for a previous version of the add-on (0.1.0.1-signed.1-signed).