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{tor,mullvad}-browser: 15.0.11 -> 15.0.12#517715

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SigmaSquadron merged 2 commits intoNixOS:masterfrom
whispersofthedawn:p/tor-mullvad-browser
May 7, 2026
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{tor,mullvad}-browser: 15.0.11 -> 15.0.12#517715
SigmaSquadron merged 2 commits intoNixOS:masterfrom
whispersofthedawn:p/tor-mullvad-browser

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@whispersofthedawn whispersofthedawn commented May 7, 2026

Release announcement (TB): https://blog.torproject.org/new-release-tor-browser-15012/
Changelog (TB): https://gitlab.torproject.org/tpo/applications/tor-browser-build/-/raw/tbb-15.0.12-build1/projects/browser/Bundle-Data/Docs-TBB/ChangeLog.txt
Changelog (MB): https://gitlab.torproject.org/tpo/applications/tor-browser-build/-/raw/mb-15.0.12-build1/projects/browser/Bundle-Data/Docs-MB/ChangeLog.txt
Firefox ESR: https://www.firefox.com/en-US/firefox/140.10.2/releasenotes/
Firefox diff: https://gitlab.torproject.org/tpo/applications/tor-browser/-/compare/FIREFOX_140_10_1esr_BUILD1...FIREFOX_140_10_2esr_BUILD1

This release includes security fixes to Firefox ESR as well as fixes for TROVE-2026-006 through TROVE-2026-011 in Tor.

Note: Tor v0.4.9.7 has a minor (i.e. probably not blocking this PR) bug that clients will bootstrap against the directory authorities instead of against the fallback directories, placing undue load on the network. v0.4.9.8 fixes this, and we should get Tor Browser 15.0.13 with this update within a few hours.

Things done

  • Built on platform:
    • x86_64-linux
    • aarch64-linux
    • x86_64-darwin
    • aarch64-darwin
    • i686-linux (tor-browser only)
  • Tested, as applicable:
  • Ran nixpkgs-review on this PR. See nixpkgs-review usage.
  • Tested basic functionality of all binary files, usually in ./result/bin/.
  • Nixpkgs Release Notes
    • Package update: when the change is major or breaking.
  • NixOS Release Notes
    • Module addition: when adding a new NixOS module.
    • Module update: when the change is significant.
  • Fits CONTRIBUTING.md, pkgs/README.md, maintainers/README.md and other READMEs.

@whispersofthedawn whispersofthedawn added 1.severity: security Issues which raise a security issue, or PRs that fix one backport release-25.11 Backport PR automatically labels May 7, 2026
@nixpkgs-ci nixpkgs-ci Bot added 8.has: package (update) This PR updates a package to a newer version 10.rebuild-linux: 1-10 This PR causes between 1 and 10 packages to rebuild on Linux. 10.rebuild-darwin: 0 This PR does not cause any packages to rebuild on Darwin. 11.by: package-maintainer This PR was created by a maintainer of all the package it changes. labels May 7, 2026
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Thanks. Browsers still work on x86_64 and everything seems fine.

@SigmaSquadron SigmaSquadron added this pull request to the merge queue May 7, 2026
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Let me know as soon as .13 update is released upstream.

Merged via the queue into NixOS:master with commit 3c76fb7 May 7, 2026
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nixpkgs-ci Bot commented May 7, 2026

Successfully created backport PR for release-25.11:

@github-actions github-actions Bot added the 8.has: port to stable This PR already has a backport to the stable release. label May 7, 2026
@whispersofthedawn whispersofthedawn deleted the p/tor-mullvad-browser branch May 7, 2026 16:07
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Labels

1.severity: security Issues which raise a security issue, or PRs that fix one 8.has: package (update) This PR updates a package to a newer version 8.has: port to stable This PR already has a backport to the stable release. 10.rebuild-darwin: 0 This PR does not cause any packages to rebuild on Darwin. 10.rebuild-linux: 1-10 This PR causes between 1 and 10 packages to rebuild on Linux. 11.by: package-maintainer This PR was created by a maintainer of all the package it changes. backport release-25.11 Backport PR automatically

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