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Mozilla mentions

Elm is the experimental repository where most of our Metro development work has been happening.

Now, I grabbed the latest nightly from the Elm repo, installed it & then despite starting it from the start screen, I was still provided the desktop version.

Is there a way I can get the Metro Modern UI of Firefox in Windows 8? Do I need to add some extra command line arguments or something?

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3 Answers 3

up vote 4 down vote accepted

Ok, firstly, there seems to be a quirk in Windows 8: only the default browser can be launched with Modern UI. I have tested with IE, FF and Chrome on the Enterprise Evaluation and they will all launch the Desktop version unless set as default. Additionally, as soon as a browser is set as the default handler for HTTP/HTTPS, any other running Modern UI is instantly closed. More information is available at this question.

So, I have it running fine. There were a few things I did, any of which may be responsible:

  • Installed an older Firefox build (FF 18), specifically the installer executable

  • Set as default for all via Control Panel => Programs => Default Programs => Set Default Programs => Nightly

    Screenshot
    Click for full size

  • When the Modern UI version launched, but hung with a blank screen, I closed it via Task Manager, set IE back to default, and set Nightly to default again. At this point, the Modern UI version of FF worked.

  • Installed the latest elm build (FF 19, 24-Oct-2012 06:06), again from the installer executable. Restarted.

So, now I have Nightly running with Modern UI:

Screenshot of FF Modern UI
Click for full size

Screenshot of FF Modern UI, snapped
Click for full size

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yeah, I had to set it as default to get it running. Stupid move, if you ask me :\ –  Sathya Oct 26 '12 at 4:06

It doesn't quite work right yet. Using a shortcut to the executable (Might be in Program Files (x86))

"C:\Program Files\Nightly\firefox.exe" -metrodesktop

with that new parameter opens up the Metro version of Firefox Elm on the regular desktop.

Chances are this will be fixed in future builds

enter image description here

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I'm really wondering if they're completely programming the wrong way (not starting as a Metro app and thus not being able to go into the Metro environment) or there's some trick to use Metro applications in the desktop, because this is definitely weird... –  Tom Wijsman Oct 22 '12 at 12:38
1  
It's supposed to be based on fennec for windows phone so its definately an odd one –  Journeyman Geek Oct 22 '12 at 12:46
    
I'm going to have to unmark this as accepted answer - this didn't work - had to set a browser as default for it to start in Metro Mode –  Sathya Oct 26 '12 at 4:05
    
The defaultness was something I did set and have no luck with. Chrome lets you swap between modes if its default so i guess its a hard and fast rule for some reason. Bloody strange if you ask me. –  Journeyman Geek Oct 26 '12 at 4:53

I'm not exactly sure what the problem is here, I just installed the nightly build myself without issues.

It didn't seem to activate the metro version (when launched from the start screen) until after a reboot, but from then on it worked just fine.

Keep in mind though it is still in NIGHTLY status, and many bugs should be expected.

PS: same thing happened with metro chrome. On first install it was desktop only, but once reboot, metro worked.

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