uBlock Origin - Popular and efficient blocker for Chromium, Chrome, Edge, Firefox, Opera, Safari, Thunderbird.
1Blocker - 1Blocker is a content blocking software that you can rely on to save time and money. Unlike its competitors who use JavaScript to block ads after they have been download, 1Blocker does the contrary. Read more about 1Blocker.
Privacy Badger - Privacy Badger blocks spying ads and invisible trackers. How is Privacy Badger different from Disconnect, Adblock Plus, Ghostery, and other blocking extensions?
Crystal - Crystal shows you the best way to communicate with any prospect, customer, or coworker based on their unique personality.
BlockBear - Block ads and protect your privacy on iOS with a bear
AdAway - An ad blocker that uses the hosts file. For Android, requires root.