Well, some bugs actively hurt their ecosystem, like the bug in Firefox for iOS that sends corrupt or missing cookies after the application has been tombstoned a

Well, some bugs actively hurt their ecosystem, like the bug in Firefox for iOS that sends corrupt or missing cookies after the application has been tombstoned and is launched again[0]. This will cause you to get logged out of many sites, which in turn makes you use a different browser and at that point you might as well use Chromium on your desktop as well. [0] https://github.com/mozilla-mobile/firefox-ios/issues/12279 https://github.com/mozilla-mobile/firefox-ios/issues/12279