this post was submitted on 09 Dec 2023
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firefox mobile cant access ipv6 sites directly (monero.town)
submitted 8 months ago by [email protected] to c/[email protected]
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If i put say 123.123.123.123 into firefox desktop or mobile it will try to load a webpage from that host. If i put http://[ipv6] into desktop it works as well. If i do the same on mobile it sends it to my search engine as a query.

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[–] [email protected] 11 points 8 months ago (2 children)

I have two firefox mobile browsers: beta and nightly. In Nightly this redirects to https://heise.de/ while in Beta, it opens google search: http://[2a02:2e0:3fe:1001:302::]

This might have something to do with different proxy settings on both.

[–] [email protected] 3 points 8 months ago (1 children)

No, it has to do with UI element where you type addresses and searches (input box). It's a very old bug, you can find issues on GitHub, Bugzilla etc.

Input box is supposed to understand whether what you type is an address, and if not, it is being treated as a search query. To understand if it's an address, it uses Regular Expressions. Their regular expression is wrong, so it can find IPv4 address, but can't find IPv6. As simple as that.

There were some pull requests to fix that, but guys at Mozilla said that those pull requests lead to performance regressions and rejected that.

I know all of this because I could not use IPv6 addresses too and hadbl to look for the issue and find workarounds.

[–] p1mrx 4 points 8 months ago

There were some pull requests to fix that, but guys at Mozilla said that those pull requests lead to performance regressions and rejected that.

The latest PR was accepted in November, so IPv6 literals work in v122 alpha.

[–] [email protected] 1 points 8 months ago (1 children)

What version is nightly? Its aplarently being fixed in v122.

[–] [email protected] 2 points 8 months ago

122.0a1 (Build #2015990183), 416b0de9fa+ GV: 122.0a1-20231206213012 AS: 122.20231206050313