When you put it that way, it does actually sound interesting, though I'm still a bit skeptical of its lack of open sourcing. In addition, unmodified Chromium phones home to Google a lot IIRC. There's a reason Ungoogled Chromium exists. If there's a way to use Ungoogled Chromium with it or even Gecko, it'd be a bit more compelling for me. I'm not quite sure if I see Chromium's extension library as a positive. I get that it's larger than Firefox's library, and I'm sure there are plenty of interesting ones that aren't on Firefox but are on Chromium. However, a lot of those extensions are either pretty low quality or are straight-up malware (I'm more concerned with the latter, the former can just be disregarded). It seems like every couple of months or so, a new article comes out about a bunch of malware being found on the Chrome Web Store. Even accounting for Firefox's smaller userbase, there are very few articles about such incidents happening on Mozilla's extension repository. And I've noticed that Mozilla tends to respond more quickly to reports of malware than Google does. CWS has also had a problem with survey scam extensions that blatantly impersonated various companies in the past, though I'm not sure if that's still a problem. I've recently found that FVD Speed Dial intercepts search queries that are supposed to go to Bing or Yahoo when you use the search bar added by their new tab page before redirecting you to Bing or Yahoo when it's not supposed to do that. Essentially an MITM attack. This behavior has gotten them banned from Mozilla's extension repository in the past, but despite the fact that they're still doing it, Google has featured the extension on CWS. ~Strawberry