[Pkg-mozext-maintainers] Bug#1002709: webext-ublock-origin-firefox: ublock-origin makes firefox-esr 91 consumes 100% of a CPU core

[Amr Ibrahim]

Package: webext-ublock-origin-firefox
Version: 1.37.0+dfsg-1~deb11u1
Severity: important

Hello,

In firefox-esr 91 in Debian 11, webext-ublock-origin-firefox makes Firefox
consumes 100% of a CPU core while browsing, and especially in YouTube.

When the latest version of ublock-origin is installed from Firefox add-ons, and
the Debian package webext-ublock-origin-firefox is removed, the issue
disappears, and I don't experience the 100% CPU consumption any more.

Best,
Amr


-- System Information:
Debian Release: 11.2
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500,
'stable'), (100, 'bullseye-fasttrack')
Architecture: amd64 (x86_64)

Kernel: Linux 5.10.0-10-amd64 (SMP w/8 CPU threads)
Kernel taint flags: TAINT_WARN
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE not
set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

webext-ublock-origin-firefox depends on no packages.

Versions of packages webext-ublock-origin-firefox recommends:
ii  firefox-esr  91.4.1esr-1~deb11u1

Versions of packages webext-ublock-origin-firefox suggests:
pn  ublock-origin-doc  <none>