AdBlock, like other browser extensions, usually updates itself just fine as new versions are released. If AdBlock doesn't seem to be working, however, making sure it's up-to-date is a good first step in troubleshooting.
Chrome
- Enter chrome://extensions in the address bar
- Turn on Developer mode by ticking the check box
- Click Update extensions now
Firefox
- Enter about:addons in the address bar
- Click the gear icon at the top of the page to open the add-on tools menu
- Make sure that Update Add-ons Automatically is selected
- Select Check for Updates
Edge
- Enter edge://extensions in the address bar
- Turn on Developer mode by ticking the check box
- Click Update extensions now
Safari (Mac)
- Open the Mac App store.
- From the lefthand menu, click Updates.
- In the top right-hand corner, click Update All.
Safari (iOS)
- Open the App Store and check for pending updates
- If AdBlock is in the list, click Update
Samsung Internet (Android)
- Find AdBlock in the apps drawer and open AdBlock
- Tap Configure automatic updates
- Tap Always