Migrate about dialog strings to Fluent

Merge Info

Related Issues

• #42203 (closed)

Backporting

Timeline

• Immediate: patchset needed as soon as possible
• Next Minor Stable Release: patchset that needs to be verified in nightly before backport
• Eventually: patchset that needs to be verified in alpha before backport
• No Backport (preferred): patchset for the next major stable

(Optional) Justification

• Emergency security update: patchset fixes CVEs, 0-days, etc
• Censorship event: patchset enables censorship circumvention
• Critical bug-fix: patchset fixes a bug in core-functionality
• Consistency: patchset which would make development easier if it were in both the alpha and release branches; developer tools, build system changes, etc
• Sponsor required: patchset required for sponsor
• Localization: typos and other localization changes that should be also in the release branch
• Other: please explain

Merging

• Merge to tor-browser - !fixups to tor-browser-specific commits, new features, security backports
• Merge to base-browser - !fixups to base-browser-specific commits, new features to be shared with mullvad-browser, and security backports
  • NOTE: if your changeset includes patches to both base-browser and tor-browser please clearly label in the change description which commits should be cherry-picked to base-browser after merging

Issue Tracking

• Link resolved issues with appropriate Release Prep issue for changelog generation

Review

Request Reviewer

• Request review from an applications developer depending on modified system:
  • NOTE: if the MR modifies multiple areas, please /cc all the relevant reviewers (since gitlab only allows 1 reviewer)
  • accessibility : henry
  • android : clairehurst, dan
  • build system : boklm
  • extensions : ma1
  • firefox internals (XUL/JS/XPCOM) : ma1
  • fonts : pierov
  • frontend (implementation) : henry
  • frontend (review) : donuts, richard
  • localization : henry, pierov
  • macos : clairehurst, dan
  • nightly builds : boklm
  • rebases/release-prep : dan, ma1, pierov, richard
  • security : ma1
  • signing : boklm, richard
  • updater : pierov
  • misc/other : pierov, richard

Change Description

First of many Fluent migration patches! We convert the "Help > About Tor Browser" dialog to use Fluent, dropping "aboutDialog.dtd".

We also add a migration script "bug-42203-about-dialog.py". This will be run with tools/torbrowser/l10n/migrate.py in the translation repository once it receives the new Fluent changes. The will fill the non-en-US tor-browser.ftl files with the existing strings found in the translated "aboutDialog.dtd".

All the strings could be migrated using the existing DTD strings, with the exception of about-dialog-trademark-statement, which had to be changed:

• To use double-quotes rather than ASCII single quotes.
• To capitalize "The" and include it as part of the trademark name and the corporation name.
• Add a note to translators to not translate the trademark names. The previous translations often translated "Onion Logo" even though it is a trademark name.

How Tested

Open "Help > About Tor Browser". All the strings should be present, and all the links should work.

Migration script runs successfully.