Package: firefox
Version: 137.0-1
Severity: normal

Dear beloved and much esteemed Maintainer,


forcing webrender material acceleration used to work fine on my AMD hardware, but since latest update it creates large transparent blocks in webpages on scrolling, disables some elements ( like drop-down menus on https://www.debian.org/distrib/packages ), and renders UI element broken or very unresponsive (like the main pancakes menu). Disabling webrender material acceleration fixes the problems. So while the forced acceleration is not standard, it looks like a regression in that area from previous versions.

I am running a Wayland session in Plasma KDE, the GPU is an AMD Radeon 7900XT.

Thank you for your attention.

-- System Information:
Debian Release: trixie/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (101, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.14.0-deb64 (SMP w/16 CPU threads; PREEMPT)
Kernel taint flags: TAINT_CPU_OUT_OF_SPEC, TAINT_UNSIGNED_MODULE
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE=fr:en_US
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages firefox depends on:
ii  debianutils          5.21
ii  fontconfig           2.15.0-2.2
ii  libasound2t64        1.2.13-1+b1
ii  libatk1.0-0t64       2.56.1-2
ii  libc6                2.41-6
ii  libcairo-gobject2    1.18.4-1+b1
ii  libcairo2            1.18.4-1+b1
ii  libdbus-1-3          1.16.2-2
ii  libevent-2.1-7t64    2.1.12-stable-10+b1
ii  libffi8              3.4.7-1
ii  libfontconfig1       2.15.0-2.2
ii  libfreetype6         2.13.3+dfsg-1
ii  libgcc-s1            14.2.0-19
ii  libgdk-pixbuf-2.0-0  2.42.12+dfsg-2
ii  libglib2.0-0t64      2.84.0-2
ii  libgtk-3-0t64        3.24.49-3
ii  libnspr4             2:4.36-1
ii  libnss3              2:3.110-1
ii  libpango-1.0-0       1.56.3-1
ii  libstdc++6           14.2.0-19
ii  libvpx9              1.15.0-2
ii  libx11-6             2:1.8.12-1
ii  libx11-xcb1          2:1.8.12-1
ii  libxcb-shm0          1.17.0-2+b1
ii  libxcb1              1.17.0-2+b1
ii  libxcomposite1       1:0.4.6-1
ii  libxdamage1          1:1.1.6-1+b2
ii  libxext6             2:1.3.4-1+b3
ii  libxfixes3           1:6.0.0-2+b4
ii  libxrandr2           2:1.5.4-1+b3
ii  procps               2:4.0.4-7
ii  zlib1g               1:1.3.dfsg+really1.3.1-1+b1

Versions of packages firefox recommends:
ii  libavcodec-extra61 [libavcodec61]  7:7.1.1-1+b1

Versions of packages firefox suggests:
ii  fonts-lmodern          2.005-1
ii  fonts-stix [otf-stix]  1.1.1-5
ii  libcanberra0           0.30-17+b1
ii  libgssapi-krb5-2       1.21.3-5
pn  pulseaudio             <none>

-- no debconf information

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