Follow the steps given below to fix your toolbar and extensions blocked issues.
1.click the "Start" button at the lower left corner
For Firefox browser, to restore plugin is very easy, just follow our instructions below.
1.Open Firefox, in the menu-bar, select Tools > Add-ons
2.Click Add-ons. The Add-ons Manager page will open.
3.Find the plugin you want to restore, click on Enable on the right side.