As discussed [here](https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/32324#note_2899463) and [here](https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/32324#note_2925080), some user might prefer to have the letterboxing content vertically centered. It has been suggested that this should be an user-accessible option, under a "Letterboxing" preference section including also an "Always remember last window" toggle. Backend work: - Letterboxing centering #41917 - Remember last window option #41918 [Figma Design](https://www.figma.com/file/rWgMwiiFTDFp4ujuP3PKbq/Tor-Browser-13.5?type=design&node-id=202-1221&mode=design&t=W4c43um0jGlUramZ-4) Initial comments: @ruihildt > don't think the letterboxing setting belongs to the "Privacy and security" section: I suggest we move it to "Website and appearance". @ma1 > 1. would prefer to name the thing to be centered "web content" or "web page" instead of "website" > 2. What about having a "What's this" tooltip and/or a question mark cursor when hovering the letterbox area, which would open the preference panel if clicked? Intentionally omitting the release target (the parent issue has 13.5), leaving it to @duncan & @richard . /cc @thorin