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Upside down??

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kermik
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Upside down??

Installed Mozilla Firefox, Portable Edition 37.0.1 on 04.04.2015, seemingly working just fine BUT going to any Google pages - in my case Google Maps - I find them mirrored, i.e. upside down and back to front. On the 'net this seems a Crome-related thing, so has anyone else come across it in Firefox?
Rolling back to previous version /36.0.4) the Google pages displays just fine.

John T. Haller
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Extension or GPU

It's likely either an extension or an issue with your graphics driver. I'd recommend starting in safe mode (just feed -safe-mode to FirefoxPortable.exe running it from the command prompt) to determine if it is an extension issue and upgrading your graphics drivers. Firefox 37.0.1 itself (local and portable) works just fine with all Google properties.

Sometimes, the impossible can become possible, if you're awesome!

kermik
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Upside-down - still a mystery

Still the same thing: Google Maps opens and show the opening page correctly for a few second, then flips to upside-down/back-to-front.
Have tried the safe-mode switch (thanks John, didn't know about that one) and everything works fine. Started PFF in standard mode and started disabling add-ons - but no luck, all add-ons disabled but Google Maps still displays upside down. Question: What do the safe-mode "do" in addition to disabling add-ons?
Doubt that this is a result of my graphics driver, it's only in PFF 37, in no other browser - have tried Portable Opera (old one), IE, Portable QupZilla, Portable Google Chrome - mindboggling!

John T. Haller
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Details

Details on safe mode are here: https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-s...

It could easily be your graphics driver. Safe mode disables hardware acceleration as well as resets some settings in addition to disabling add-ons. Just because other browsers work, doesn't mean it's not due to the graphics driver. Every browser does things differently. Opera (old) and QupZilla don't even use any hardware acceleration. Chrome uses different hardware calls than Firefox does.

It could also be something you changed in about:config at some point that should not have been messed with.

Sometimes, the impossible can become possible, if you're awesome!

kermik
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upside-down - solved (sort of)

Thanks for the tips, John! New video driver installed, clean install of FFP v. 37.0.1, addons installed one by one, bookmarks, password etc copied over - and voila! no more upside down images from Google Maps.
What caused it though is beyond me, but I may have (i.e. I know I have at some time) fiddled with the about:config settings, will compare later and see which ones.
Hope this helps anyone with the same problem.
EDIT:
...or not. Problem returned but turning off hardware acceleration in PFF solved it, so updated graphics driver (as adviced, thanks John!), started PFF v.37 and turned hardware acceleration on - and now it's OK.

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