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A comment on Firefox 18 Gets Support for Retina Display. Parent comment

Re:Firefox 18 Gets Support for Retina Display by tedunangst on Sunday September 30, 2012 @02:50AM (#4592219)
If. If I can restart a web server without restarting memcache and have a new process handle new requests while the old process handles existing requests, it's clearly possible for a browser to change its rendering engine for new tabs.
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Re:Firefox 18 Gets Support for Retina Display by ars on Sunday September 30, 2012 @04:33AM (#4592393)
The rendering engine, sure, but what about the rest of the browser? Cache, Cookie, Prefs, bookmarks, etc.

Browsers are not just rendering engines.

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Re:Firefox 18 Gets Support for Retina Display by azakai on Sunday September 30, 2012 @10:23PM (#4595020)
It's possible in theory, but very hard. None do it to my knowledge.
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