Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Rechercher dans l’assistance

Évitez les escroqueries à l’assistance. Nous ne vous demanderons jamais d’appeler ou d’envoyer un SMS à un numéro de téléphone ou de partager des informations personnelles. Veuillez signaler toute activité suspecte en utilisant l’option « Signaler un abus ».

Learn More

Firefox quantum has bad multi monitor support.

  • 1 réponse
  • 13 ont ce problème
  • 16 vues
  • Dernière réponse par dusty071

more options

I have two screens, set up in Windows 10 like this: - Main monitor is 3840 x 2160 , DPI scaling 175% - Second monitor is 1680 x 1050, DPI scaling 100%

I cannot use Firefox on both screens because it does not switch the value of "layout.css.devPixelsPerPx" automatically between 1.75 and 1.00, making some addons unusable and text unreadable due to size distortion.

Another problem is that when on the second screen the Firefox top most section (the tab bar and min/max/close buttons) never fully maximizes to the top of the monitor no matter what i try. From first glance it seems that the topmost 3 pixels are empty, i cannot click a tab or a min/max/close button in the top most 3 pixels, i can only use them for dragging the firefox window. Weirdly the window does work properly when in the Full-screen mode.

I love firefox and i would like to continue using it but i hope there is eventually a solution to these problems, thanks.

I have two screens, set up in Windows 10 like this: - Main monitor is 3840 x 2160 , DPI scaling 175% - Second monitor is 1680 x 1050, DPI scaling 100% I cannot use Firefox on both screens because it does not switch the value of "layout.css.devPixelsPerPx" automatically between 1.75 and 1.00, making some addons unusable and text unreadable due to size distortion. Another problem is that when on the second screen the Firefox top most section (the tab bar and min/max/close buttons) never fully maximizes to the top of the monitor no matter what i try. From first glance it seems that the topmost 3 pixels are empty, i cannot click a tab or a min/max/close button in the top most 3 pixels, i can only use them for dragging the firefox window. Weirdly the window does work properly when in the Full-screen mode. I love firefox and i would like to continue using it but i hope there is eventually a solution to these problems, thanks.

Solution choisie

I think setting the scaling to System (enhanced) fixed both of my issues.

Lire cette réponse dans son contexte 👍 4

Toutes les réponses (1)

more options

Solution choisie

I think setting the scaling to System (enhanced) fixed both of my issues.