With Google terminating support for Manifest V2 extensions in Chromium and thus most Chromium-based browsers, only some companies have announced solutions to keep support for select extensions.
The latest version of Brave Browser addresses one of the main problems with the migration from MV2 to MV3: the removal of MV2 extensions from the Chrome Store.
What happens when you need to install a classic extension on a new PC or new browser profile? Unless you happen to have a local copy or know how to download it from GitHub or other repositories — if it is provided there — you may be out of options.
Brave Software implemented an option in the browser to replace “known Web Store MV2 extensions with Brave-hosted equivalents”. Up until that point, users had to walk through the process manually. This also meant that settings were not carried over.
With the new process, at least for “known extensions”, Brave is automating things for the user. A benefit of this is that Settings are carried over, which means that you do not have to reconfigure the entire extensions.
There does not seem to be a list of extensions that get the treatment, but a screenshot highlights uBlock Origin, NoScript, uMatrix and AdGuard.