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Flatpak Firefox (and forks) very slow to start
(slrpnk.net)
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this post was submitted on 07 Jun 2024
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Any issues lately with your network? When DNS is down or having issues, Firefox and forks take forever to start up.
Nothing special, I don't think that's the problem since the lag is at every launch and it takes something like a minute to appear.
It also happens when the hosts file is messed up and the system can’t resolve its own hostnames. Opensuse used to be pretty notorious for doing something odd to the hosts file by default that really only affected Firefox.
Edit: the increased security they’re trying around the browser might also be triggering that local resolution issue
Listen to the parent, this is almost certainly something to do with DNS (i.e. Firefox is not getting an answer for some reason, then timing out, then using maybe a backup DNS server; maybe there are multiple rounds of this). Who knows how your distro and that flatpak produce this interaction, but something is going on there.
If that's the issue, why it doesn't happen with all other flatpaks?
Don't know. Different runtimes? Different permissions?