this post was submitted on 20 Jul 2025
80 points (92.6% liked)

Selfhosted

49861 readers
1245 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

  1. Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.

  2. No spam posting.

  3. Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it's not obvious why your post topic revolves around selfhosting, please include details to make it clear.

  4. Don't duplicate the full text of your blog or github here. Just post the link for folks to click.

  5. Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).

  6. No trolling.

Resources:

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] tinsuke@lemmy.world 3 points 1 week ago* (last edited 1 week ago) (1 children)

That's no bug, mTLS just isn't implemented on Firefox (for Android) currently.

There are 2 proposed solutions on that thread:

  1. It was possible on old versions of FF, but not the current ones. I believe this to be related to the versions prior to the revamp that happened circa 2020. (the author refers to a version that was already "old" by 2022). So it was something supported on OG Firefox, not not on the new (current, by 5 years already) version.
  2. Using the debug menu's secret settings to enable "Use third party CA certificates". This is available on current FF, but that's no mutual TLS. It is about allowing CA certificates that you installed yourself on your device for server TLS auth.
[–] antithetical@lemmy.deedium.nl 1 points 6 days ago* (last edited 6 days ago) (1 children)

How I read it is that they've reintroduced it in FF 139 and that you need to enable the third-party certificates to acces the client certificate in the Android cert. store. But the linked bugs in the later replies of my link mention a regression in FF 140+.

I do agree that this is still a horrible UX though. Sadly I don't have the time currently to test it.

[–] tinsuke@lemmy.world 2 points 6 days ago

Oh, you're right.

It seems to have been implemented and working on 138, but broken since 140 (my current version), with a fix scheduled to come on 142.

I'm looking forward to that one!