[Bug 25830] Re: Option to display file in browser, treat as text/plain

[era]

For the record, the "Open in Browser" extension does this, and gets it
exactly right. Why this cannot be implemented natively in Firefox is
beyond me, but a workaround and model implementation exists.

http://www.spasche.net/mozilla/

The canonical related upstream bug is
https://bugzilla.mozilla.org/show_bug.cgi?id=57342 and I think there is
one in the Debian BTS about this too.

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Option to display file in browser, treat as text/plain
https://launchpad.net/bugs/25830