v4.9.124
Try to discourage "unrelated" information under `Attach (recommended) or Link to PDF file` in the bug report template (PR 18535 follow-up)
Use Python 3.13 in the GitHub workflows
[api-minor] Move to Fluent for the localization (bug 1858715)
Update links from IRC to Matrix.
Improve the security policy
Stop Dependabot from creating its own, otherwise unused, labels
Add workflow to lint Fluent en-US files
Include a security policy for PDF.js
