This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

FF always opens in 2nd monitor

  • 5 replies
  • 32 have this problem
  • 2 views
  • Last reply by cor-el

more options

I have dual monitors and occasionally set my 2nd monitor as the primary when testing software. On reverting back to use my 1st monitor as primary (using display settings) I find FF disregards the changed setting and always opens on the second monitor. Reboot does not resolve the problem. All other apps open in primary.

Any way to resolve this?

I have dual monitors and occasionally set my 2nd monitor as the primary when testing software. On reverting back to use my 1st monitor as primary (using display settings) I find FF disregards the changed setting and always opens on the second monitor. Reboot does not resolve the problem. All other apps open in primary. Any way to resolve this?

Chosen solution

If Firefox is maximized then make the window smaller and drag that window over to the correct monitor and close Firefox to save that setting.

After restarting you can maximize again.

Read this answer in context 👍 4

All Replies (5)

more options

Maybe it was fixed in newer versions of Firefox? You are using Firefox 3.5.

If you see that Firefox 3.6 has the same problem, read this and, if you see it's a bug with Firefox, file a bug at bugzilla, if it hasn't been filed before.

more options

Chosen Solution

If Firefox is maximized then make the window smaller and drag that window over to the correct monitor and close Firefox to save that setting.

After restarting you can maximize again.

more options

Thanks cor-el, that solved it. Assume it is stored in profile.

more options

I have ther same issue and I have tried several, (try hundreds) of times to get it to go back to the original monitor and I have arrived on the conclusion that it just won't unless I unplug the second monitor and relaunch the app several times. I'm running a MacBook Pro with a 2.4 GHz Intel and mac OsX 10.6.5. I finally deleted Firefox and started over. Either fix it or lose me as a user. I'm done!

more options

This can be a problem with the file localstore.rdf in the Profile Folder.

Delete localstore.rdf or rename the file to localstore.rdf.sav in the Profile Folder to test if the file is corrupted.

See http://kb.mozillazine.org/Corrupt_localstore.rdf

Modified by cor-el