What is the best ad-blocker for Firefox? - Quora
Firefox has a built-in ad-blocker, but most users use an add-on ad-blocker because they work better. Sometimes, the "disable AdBlock" is because of a false positive. Make sure you are not blocking content. Start Firefox in Safe Mode {web link} by holding down the
Turning AdBlock Off? | Firefox Support Forum | Mozilla Support
Turning AdBlock Off? | Firefox Support Forum | Mozilla Support
To install a featured recommended add-on, click the blue + Install Theme or + Add to Firefox button, depending on the type of add-on. To uninstall an add-on you just installed, click the grey Remove button. At the top and bottom of the list of featured recommended add-ons, there's also a Find more add-ons button you can click.
The 14 best Firefox add-ons | Computerworld