Mouse doesn't work in Tor Browser Alpha 14.0a9 on Linux+sway

Summary

Mouse input does not work in Tor Browser Alpha 14.0a9 :/

All of left-click, right-click, and scroll wheel don't work anywhere on the webpage or browser UI. The keyboard does work.

This is likely a bad interaction between the browser and the window manager (wayland/sway). Tor Browser used to work fine, but this mouse issue started maybe a month or two ago. Firefox 131.0.2 that I get from the fedora repos works fine for me. I have not had this mouse behaviour with any other applications.

I don't think it's worth anyone spending time trying to reproduce and fix this. It's probably more of a Firefox bug than a Tor Browser bug. But I'm opening this issue in case other people have the same problem.

Is there a Firefox version that is similar to this Tor Browser version that I could test with to see if it has the same behaviour?

Steps to reproduce:

I'm not sure. For me it's "Launch Tor Browser and try to click something". But to actually reproduce, you probably would need the same window manager at least. I'll list my environment as best as possible below.

What is the current bug behavior?

Mouse input doesn't do anything.

What is the expected behavior?

Mouse input does something.

Environment

Downloaded from https://www.torproject.org/download/ and run using the start-tor-browser desktop entry.

• Fedora 40
• Tor Browser Alpha 14.0a9
• uname -a: Linux foo 6.10.9-200.fc40.x86_64 #1 SMP PREEMPT_DYNAMIC Sun Sep 8 17:23:55 UTC 2024 x86_64 GNU/Linux
• sway --version: sway version 1.9

Relevant logs and/or screenshots

Let me know if there's anything useful I can provide here.