We have

    <div id="torbrowser-info">
      <div id="torbrowser-version"/>
      <div id="torbrowser-changelog-link"><a href="about:tbupdate">&aboutTor.viewChangelog.label;</a></div>
    </div>

in aboutTor.xhtml and

body[mobile] #torbrowser-info,
body[mobile] .searchbox,
body[mobile] .top .heading2,
body[mobile] #manual,
body[mobile] #mission {
  display: none;
}

Which is presumably why the version number is not shown on mobile. It's not clear why we decided to not show all the things in torbrowser-info on mobile but sysrqb thinks that might be due to about:tbupdate not be available there. I guess we could just set display:none; on mobile for torbrowser-changelog-link instead?

Trac:
Component: - Select a component to Applications/Tor Browser
Keywords: N/A deleted, tbb-torbutton added
Owner: N/A to tbb-team

Replying to gk:

We have {{{

&aboutTor.viewChangelog.label;

}}} in aboutTor.xhtml and {{{ body[mobile] #torbrowser-info, body[mobile] .searchbox, body[mobile] .top .heading2, body[mobile] #manual, body[mobile] #mission { display: none; } }}} Which is presumably why the version number is not shown on mobile. It's not clear why we decided to not show all the things in torbrowser-info on mobile but sysrqb thinks that might be due to about:tbupdate not be available there. I guess we could just set display:none; on mobile for torbrowser-changelog-link instead?

I think so, yes. Most of the hidden items were added during the #27111 (moved) work (commit 61deb44d0c07eb1ec1d71eac2f0a7aeca87ea054). Kathy and I introduced #torbrowser-info during our work on #29440 (moved) (commit 82a5f8665a6b5a7f5d4c78f0a526dfa16834ec7f).

I have branch bug30943 ready for review.

Trac:
Keywords: N/A deleted, TorBrowserTeam201909R added
Status: new to needs_review

Looks good to me (fwiw, the branch was in the Torbutton repo). Applied to master as commit 2abe720e3f1dbe1b49b41fe78719f318407babd0.

Trac:
Status: needs_review to closed
Resolution: N/A to fixed

Taking a guess.

Trac:
Points: N/A to 0.5
Actualpoints: N/A to 0.5