This is nos serious. Even after having been asked to add the possibility to import and export a list of the blocked sites about three years ago, people did not get the developer attention did not. I changed.

Doesn't work - doesn't block content loaded by scripts.

The inability to block a specific URL instead of just the entire domain is disappointing. This was a basic feature of BlockSite and for this addon to seriously replace it, it should have it.

Sadly, after using this for a day I noticed it didn't reliably block the sites on my list.