Firefox won't work properly. Problems happens with the latest Parallel Tools update

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CarlosG5

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I have a Imac 27 with Retina display - Parallel 12 with Sierra and a Mac OS Sierras as a guest. When using Mozilla Firefox if you change the screen resolution on Parallel Menu Options from either "Scaled" or "More space" to "Best for Retina display", Mozilla will be totally useless. Enclosing the images of Firefox Mozilla with the scaled resolution and then the one with the Best resolution that is the one with issue.
 

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CarlosG5 said:
I have a Imac 27 with Retina display - Parallel 12 with Sierra and a Mac OS Sierras as a guest. When using Mozilla Firefox if you change the screen resolution on Parallel Menu Options from either "Scaled" or "More space" to "Best for Retina display", Mozilla will be totally useless. Enclosing the images of Firefox Mozilla with the scaled resolution and then the one with the Best resolution that is the one with issue.
Click to expand...
Hi, do you have the same behavior with other browsers? or only with the Mozilla?
 
And just for test, please try to uninstall Parallels Tools at all (do not forget to create a snapshot before) and check the Mozilla's behavior.
Plz provide us with the results.
 
I try to uninstall the tools but it won't allow to do it. I start the VM, go to the Parallel logo on the Mac, Actions, it will show re-install Parallel Tools, and it will reinstall the tools. There is nothing to doubt click to uninstall them.
 
Hello!
I have the same problem. Parallels 13, Sierra host, Sierra guest.
Firefox is being displayed scaled while using "Best for Retina" resolution.
Parallel Tools are installed and work correct on the machine.
 
Hello! I also have same issue with mozilla.
Could you please look into it and fix asap cuz it happen from parallels 13 release.
 
I posted this bug to the Parallels support and got a reply from them:
  • The bug was transferred to developers;
  • To workaround it, go to Firefox -> Settings and check Open in low resolution.
Hope they fix it in a normal way ASAP.
 
AlexeyT1 said:
I posted this bug to the Parallels support and got a reply from them:
  • The bug was transferred to developers;
  • To workaround it, go to Firefox -> Settings and check Open in low resolution.
Hope they fix it in a normal way ASAP.
Click to expand...
Cant find this option in last Mozilla for MacOS. Could you please help where exactly it is.
 
Developers? It still doesn't work good....if you set up retina resolution it oversized in mozilla. I need to turn it off to work with...when you fix it?
 
Still doesn't work with Retina! WTF guys? Is it too hard to fix? More then one year gone since first post. Are you okey?????
 
Just found a solution myself...Go to finder then choose mozilla app Icon and click "Get Info" then click on "Open in Low Resolution" save it.
It will be work with low resolution and all other apps etc will be in retina.
Developers won't fix it...I just speaking with myself here.
 
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