* X11 display server
  * Wayland display server

  * X11 display server
  * Wayland display server

  * X11 display server

  * X11 display server
  * Wayland display server

  https://gist.github.com/EduMejorado/375a01d16e89fa65807ee73ef8ae1417
  * Contains a hockey-type floor with vector elements that trigger the performance issue
  * Can be imported directly into HaxBall for testing
  * Demonstrates the performance difference between Firefox and Chromium browsers

  * Download the map from the gist
  * Import it into a haxball room
  * Load the map in both Firefox and a Chromium-based browser
  * Compare the FPS and overall performance between browsers

  * Enabled hardware acceleration (layers.acceleration.force-enabled)
  * Forced WebGL
  * Run with GPU optimization flags

  * Enabled gfx.webrender.all
  * Modified various about:config settings

  * Tested with various Firefox flags (e.g., MOZ_ENABLE_WAYLAND=0)

  * Disabled all extensions
  * Created new Firefox profile

'''SUMMARY''' Severe performance issues (low FPS) in HaxBall browser game specifically on maps containing hockey floors (vector-heavy content) across multiple Linux desktop environments and display servers. The issue is Firefox-specific, as the game performs normally on Chromium-based browsers under identical conditions. '''ENVIRONMENT''' Firefox Version: - 132.0 Tested Systems and Configurations: 1) Fedora 41 KDE Plasma 6 * X11 display server * Wayland display server 2) OpenSUSE Tumbleweed KDE Plasma 6 * X11 display server * Wayland display server 3) Fedora 41 MATE-Compiz * X11 display server 4) Fedora 41 Workstation (GNOME) * X11 display server * Wayland display server '''ISSUE DESCRIPTION''' • The performance degradation is consistent across all tested configurations • Issue specifically manifests in maps with numerous vector elements (hockey floors) • Game is virtually unplayable in vector-heavy maps • Problem is reproducible across different desktop environments and display servers • Performance is optimal in Chromium-based browsers under identical conditions '''TEST CASE''' Test Map: The performance issues can be reproduced using this test map: 1) Map code: Available as a public Gist: https://gist.github.com/EduMejorado/375a01d16e89fa65807ee73ef8ae1417 * Contains a hockey-type floor with vector elements that trigger the performance issue * Can be imported directly into HaxBall for testing * Demonstrates the performance difference between Firefox and Chromium browsers 2) Steps to reproduce: * Download the map from the gist * Import it into a haxball room * Load the map in both Firefox and a Chromium-based browser * Compare the FPS and overall performance between browsers '''ATTEMPTED SOLUTIONS''' The following solutions have been attempted without success: 1) Hardware Acceleration Related: * Enabled hardware acceleration (layers.acceleration.force-enabled) * Forced WebGL * Run with GPU optimization flags 2) Configuration Changes: * Enabled gfx.webrender.all * Modified various about:config settings 3) Environment Variables: * Tested with various Firefox flags (e.g., MOZ_ENABLE_WAYLAND=0) 4) Profile/Extensions: * Disabled all extensions * Created new Firefox profile '''IMPACT''' The performance issue makes the game unplayable specifically in Firefox, while the same content performs well in other browsers on identical systems. This suggests a Firefox-specific rendering or performance optimization issue when handling vector-heavy content.