[tor-bugs] #30662 [Applications/Tor Browser]: Make sure about:newtab is blank

[Tor Bug Tracker & Wiki]

#30662: Make sure about:newtab is blank
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     Reporter:  acat                      |      Owner:  tbb-team
         Type:  defect                    |     Status:  new
     Priority:  Medium                    |  Milestone:
    Component:  Applications/Tor Browser  |    Version:
     Severity:  Normal                    |   Keywords:  ff68-esr
Actual Points:                            |  Parent ID:
       Points:                            |   Reviewer:
      Sponsor:                            |
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 My understanding is that currently the desired behaviour is that
 `about:newtab` pages should be blank instead of the default Firefox newtab
 page. While working on #30429 I realized that after applying most of the
 desktop patches `about:newtab` is still the Firefox default. Setting
 `browser.newtabpage.enabled = false` achieves the desired effect, but this
 pref is `true` for current esr60 and I could not find a browser patch that
 explicitly sets `about:newtab` to blank for current esr60.

 In any case, we should probably set `browser.newtabpage.enabled = false`
 for esr68.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30662>
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