Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

screen displays only in upper left quarter

  • 2 replies
  • 2 have this problem
  • 23 views
  • Last reply by katzja

katzja
katzja
more options

Running FF 37.0.2 on a 15-inch Macbook Pro Retina (OSX 10.10.2) and a secondary monitor (Dell S2340M or Acer-V276HLBMD - problem occurs on each). When moving FF from the Retina to the secondary monitor, all tabs' screens display only the top left quarter of the page. (See example). When I reload the page, it fills the screen correctly, but is there a way to get FF to move to the new monitor with all page displays intact?

Running FF 37.0.2 on a 15-inch Macbook Pro Retina (OSX 10.10.2) and a secondary monitor (Dell S2340M or Acer-V276HLBMD - problem occurs on each). When moving FF from the Retina to the secondary monitor, all tabs' screens display only the top left quarter of the page. (See example). When I reload the page, it fills the screen correctly, but is there a way to get FF to move to the new monitor with all page displays intact?
Attached screenshots

All Replies (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You can try these steps in case of issues with web pages:

You can reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.

  • Hold down the Shift key and left-click the Reload button
  • Press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
  • Press "Command + Shift + R" (Mac)

Clear the cache and remove cookies only from websites that cause problems.

"Clear the Cache":

  • Firefox > Preferences > Advanced > Network > Cached Web Content: "Clear Now"

"Remove Cookies" from sites causing problems:

  • Firefox > Preferences > Privacy > "Use custom settings for history" > Cookies: "Show Cookies"

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window

You can remove all data stored in Firefox from a specific domain via "Forget About This Site" in the right-click context menu of an history entry ("History > Show All History" or "View > Sidebar > History") or via the about:permissions page.

Using "Forget About This Site" will remove all data stored in Firefox from that domain like bookmarks, cookies, passwords, cache, history, and exceptions, so be cautious and if you have a password or other data from that domain that you do not want to lose then make sure to backup this data or make a note.

You can't recover from this 'forget' unless you have a backup of the involved files.

It doesn't have any lasting effect, so if you revisit such a 'forgotten' website then data from that website will be saved once again.

katzja
katzja Question owner
more options

I had tried the steps on the troubleshooting page before posting. Sorry for not being clear.

Did safe mode. Had the problem.

Unchecking hardware acceleration helps, but Google sites still show the problem, even in safe mode. What is interesting is that Google sites smash the screen to fit (see attached photo), where the other sites only showed the upper left quarter of the screen (in effect whiting out the other 3/4's), but with full-sized characters.

Clearing the cache and history didn't stop this.

Other thoughts welcome. As I said, if I reload when the page is displaying improperly, it recovers fine, displaying the whole page.