Blocks page ads
A built in filter list removes common ad requests and hides many empty ad spaces before the page settles.
A calmer way to browse
Ad Cleanser blocks ads while you browse and gives every site a clear on or off switch. Your new tab becomes a useful place for search, shortcuts, and stories.
Control that stays simple
Turn blocking off for a whole site or only the page you are viewing. Ad Cleanser keeps those choices close in the toolbar.
A built in filter list removes common ad requests and hides many empty ad spaces before the page settles.
Keep ads on for a site you support. One switch saves the domain to your allowlist.
Make a narrow exception for the page in front of you without changing the rest of the site.
Right where you need it
The toolbar panel shows the current site, both allowlist choices, and the refresh option in one compact place.
A more useful new tab
Open a new tab to a clean start page you can shape. Show or hide shortcuts and story shelves, then choose an automatic, light, or dark look.

Before and after
Ad Cleanser removes many common ad areas so the page content has more room to breathe. Results can vary by site.
Clear choices
Allowlist choices stay in your browser. Firefox may also ask whether you want to use the extension search provider. You can accept or keep your current choice.
Ready for a cleaner page
Add Ad Cleanser to Firefox and keep the blocking controls close whenever a site needs an exception.