I think we ended up removing one space too many The string currently looks like this legacy-extensions-description = These extensions do not meet current { -brand-short-name } standards so they have been deactivated.<label data-l10n-name="legacy-learn-more">Learn about the changes to add-ons</label> Notice the lack of space before the <label> element. This used to be <label id="legacy-extensions-heading" value="&legacyExtensions.title;"/> <description> &legacyExtensions.description; <label class="text-link plain" id="legacy-learnmore">&legacyExtensions.learnMore;</label> </description> So the new line was collapsed into a white space.

Side thoughts: * The diff is going to be larger because there are a ton of trailing whitespaces in the FTL * The Python file is using Windows line ending (I didn't touch that) @Colin You should double check your text editor settings, to remove trailing whitespaces and use Unix line endings.

Pushed by francesco.lodolo@mozillaitalia.org: https://hg.mozilla.org/integration/autoland/rev/a0509a9b9a06 r=Gijs,Pike

It was just the legacy extensions description?