Anyone can build a custom extension to do anything an extension is allowed to do. I had ~7 standard extensions that I pretty much always install into chrome browser. Over the past month or so I've been using Claude code to build a single custom extension that handles all of the things I used 7 extensions for previously. One extension does everything. You can even use the existing extensions you already use as guides for Claude to make sure all of the features you want are included. One extension to rule them all!

Related:

Microsoft Edge is about to lock out older ad blockers, just like Chrome did

https://news.ycombinator.com/item?id=49220392

Firefox is never really a major browser

Thank God for the Brave browser. For those disliking their built-in adblocker, there is a Manifest v2 opt-out specifically for uBlock if you need it.