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Page "about:" removed in Firefox 59?

Posted

For many years, opening "about:" (without quotes, of course) URL in Firefox displayed a page with logo, version, user-agent, etc. But after upgrading from 58.0.2 to 59.0.2, I get an "Invalid URL" error when trying to open this page. Is this some bug or it was intentionally removed?

PS: about:mozilla, about:robots, etc work fine, problem only with about:

For many years, opening "about:" (without quotes, of course) URL in Firefox displayed a page with logo, version, user-agent, etc. But after upgrading from 58.0.2 to 59.0.2, I get an "Invalid URL" error when trying to open this page. Is this some bug or it was intentionally removed? PS: about:mozilla, about:robots, etc work fine, problem only with about:
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Additional System Details

Installed Plug-ins

  • Next Generation Java Plug-in 11.161.2 for Mozilla browsers
  • Shockwave Flash 11.2 r202

Application

  • User Agent: Mozilla/5.0 (X11; Linux i686; rv:49.0) Gecko/20100101 Firefox/49.0 SeaMonkey/2.46

More Information

TyDraniu
  • Top 25 Contributor
135 solutions 832 answers

Chosen Solution

Yes, it is https://bugzilla.mozilla.org/show_bug.cgi?id=1408044
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