how-to block ads
1. Close Firefox
2. Locate your Profile Folder and open it.
3. Delete these 4 files: extensions.rdf, extensions.ini, extensions.cache & xul.mfl
4. Close the Profile Folder and start Firefox.*
*Note* If any extension were force installed by using the Mr. Tech Local Install Extension you will need to open the Extension manager and right-click any disabled extensions and select "Make Compatible" from the right-click context menu.