>If you want to fix Firefox go complain with their management.

Despite being an open source project, Firefox management seems to be much less in touch with and responsive to their user's feedback compared to other browsers. As an example, both Safari and Firefox had the same bad idea at about the same time - converting tabs into floating buttons (although in the case of Safari the bad at least served a useful purpose: increasing vertical real estate for the browser). Both got negative feedback. The difference? Firefox management dug their heels deeper and told their users, "suck it up, this is the future of web browsing", whereas Apple listened to the feedback and killed the bad idea during the beta itself.

Yet another example: killing off single site browsing or progressive web apps.