Hi everyone! Here is my status report for July 2024.

I worked almost exclusively on the ESR transition also this month. I reviewed the rebased patchset more deeply to find potential runtime and logic errors caused by upstream changes or similar problems [0]. For example, upstream worked a lot on search engines, and the patch we had for providing our custom default selection broke as a result, and we had to re-implement it. Then, before the 14.0a1 release, I rebased Tor Browser and Mullvad Browser onto 128.0. After that, I switched to audits. During every ESR transition, we check all the bugs Mozilla closed to see if some need particular attention [1]. Until last year, this work was carried out only by a person. This year, we decided to spread it to all the team and have multiple persons review each Firefox version. I was assigned Firefox 116 to 119, and so far, I've reviewed 119+118 and started 117.

Apart from that, I worked on the usual maintenance tasks: I rebased the 13.5 series onto 115.13.0esr for 13.5.1 at the beginning of the month, and yesterday, I rebased onto 115.14.0esr and 128.1.0esr for 13.5.2 and 14.0a2, respectively. Finally, I worked on sunsetting Windows 7 support on 14.0 [2], and I updated our pipeline to fetch Firefox's translations after they were moved to GitHub [3], as this blocked 13.5.1.

Cheers, Pier

[0] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/42616 [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/42757 [2] https://gitlab.torproject.org/tpo/applications/tor-browser-build/-/issues/41... [3] https://gitlab.torproject.org/tpo/applications/tor-browser-build/-/issues/41...