Normally I would say community forks have the power to continue the project. However, in this case I think chrome / safari would eventually add enough new features that Firefox forks can’t add quick enough. Mozilla at least has some power in pushing the direction of web-standards, which these forks would lack, as well as the larger development team and some corporate usage of the browser which Mozilla has. I also don’t see the smaller development community keeping up with security issues found in the browser, particularly pertinent for corporate marketshare and individuals with a stricter threat model (journalists, dissidents, etc.)

The only other factor, is whether Firefox dissapearing would officially create impetus for an anti-trust case against Google. I doubt so under the current American presidency, but I could see the EU being concerned (even if they lack the power the US has to force the company to split). If something were to happen here there would be substantial change in the browser market, but I wouldn’t be too hopeful of this happening.

One of the advantages of Relay is that it is agnostic of your email provider, making it easier to switch providers without having to change the email on every account that has an alias.

Considering this, I’d be tempted to go with Addy.io instead of ProtonMail / SimpleLogin (subsidiary of Proton AG).

If you’re concerned with having to trust a third-party to process your emails however, Proton may be the better option with built-in aliasing. Mailbox.org is another option recommended by privacy guides with built-in aliasing.

If you’re concerned with Mozilla’s TOS change however, you may also be concerned with the Proton CEO implicitly supporting the current Trump presidency, believing that the Republicans will do a better job reigning big tech in (While I’ll agree that the democrats are not anti-corp, that died with Bernie, I think it’s foolish to believe the republicans will be better). They also pulled their entire media presence on Mastodon, and recently integrated Zoom despite explicitly stating that it has privacy issues in their blog.

I think some people are being a bit extreme in their characterization of Proton AG right now, but it definitely feels like they’re making some peculiar choices when looking at their guiding mission of privacy / security.

I find it’s just a lot of effort to go through visual customization for very little benefit, I have spent more time creating rootless podman images for certain apps, custom scripts, keybinds etc.

What I mean to say is there’s likely many people who customize functionality of their systems one way or another — without ever touching the visual side of things much beside maybe changing the font or turning dark mode on.

What are your goals?

I would say it’s really a combination of the instances policies and their jurisdiction, and in terms of jurisdiction it also depends on where you live (e.g. you may have more protections under law if the instance is hosted in your country)

There’s also nothing stopping you from using multiple instances — siloing your interaction in different types of communities in different accounts on different instances. This may be useful if part of your privacy concerns are having all of your post / comment data on one account on one instance.

Edit: You can also use an email aliasing service to avoid even giving your email out. There are aliasing services such as Addy.io, Simplelogin (subsidiary of Proton AG), Firefox Relay (Mozilla), as well as some email providers which provide (iCloud, Proton, Mailbox.org to name a few)