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Firefox closes if I open any other applications in full screen

已張貼

I am using Windows 7, and have had no difficulty multitasking with it. I can jump back and forth between programs just fine.

I can have multiple sites loaded in Firefox and can switch back and forth between them just as easily.

What I can't do is switch back and forth between Firefox and other programs.  If  switch from firefox too any other program, firefox just shuts down . . . .most of the time.  If the program I am switching to is loading, but is not loading to a full screen, firefox is fine.  If, however, that program is loading to a full screen, Firefox shuts down.

I cannot switch from a browser screen to the desktop, and then switch back. The desktop loads full screen and shuts the Browser down. Switching to any program that does not load to a full screen, leaves Firefox running, so they can switch back and forth.

There must be something in the settings that I just can't seem to find. I am hoping that someone can point me to it.

Thanks for any help

I am using Windows 7, and have had no difficulty multitasking with it. I can jump back and forth between programs just fine. I can have multiple sites loaded in Firefox and can switch back and forth between them just as easily. What I can't do is switch back and forth between Firefox and other programs. If switch from firefox too any other program, firefox just shuts down . . . .most of the time. If the program I am switching to is loading, but is not loading to a full screen, firefox is fine. If, however, that program is loading to a full screen, Firefox shuts down. I cannot switch from a browser screen to the desktop, and then switch back. The desktop loads full screen and shuts the Browser down. Switching to any program that does not load to a full screen, leaves Firefox running, so they can switch back and forth. There must be something in the settings that I just can't seem to find. I am hoping that someone can point me to it. Thanks for any help

額外的系統細節

已安裝的外掛程式

  • Adobe PDF Plug-In For Firefox and Netscape 15.8.20082
  • LastPass Plugin
  • PDF-XChange Editor Netscape Gecko Plugin
  • Shockwave Flash 19.0 r0
  • 5.1.40728.0
  • Winamp Application Detector

應用程式

  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0

更多資訊

Znert 4 個解決方法 12 個答案

Although I don't know what causes the problem you can try a few things:

First of all update Firefox. In your System Details attached to the question I can see that you are using an outdated version. https://support.mozilla.org/en-US/kb/update-firefox-latest-version

Second you can try going to about:config, accept that you will be careful, search dom.allow_scripts_to_close_windows and make sure it's set to false, otherwise other scripts might kill your session. If it's set to true, just double click it to change it. Restart Firefox, just to be save, and try if it helped.

In your Plug-Ins list I can also see one just called "5.1.40728.0". As I do not know what this is or what it does, it might be the cause of you problems. Consider uninstalling it if you know what you are doing.

If this does not help I would recommend you to read https://support.mozilla.org/en-US/kb/firefox-crashes-troubleshoot-prevent-and-get-help Especially the last point "Get help fixing this crash" could help me analyze the issue, but no promises :D Keep in mind that if your problem is not a crash but more a "regular" close the about:crashes tab might be empty. Also don't forget to make backups before you reset you Firefox or you might lose your personal data.

Although I don't know what causes the problem you can try a few things: First of all update Firefox. In your System Details attached to the question I can see that you are using an outdated version. https://support.mozilla.org/en-US/kb/update-firefox-latest-version Second you can try going to '''about:config''', accept that you will be careful, search '''dom.allow_scripts_to_close_windows''' and make sure it's set to '''false''', otherwise other scripts might kill your session. If it's set to true, just double click it to change it. Restart Firefox, just to be save, and try if it helped. In your Plug-Ins list I can also see one just called "5.1.40728.0". As I do not know what this is or what it does, it might be the cause of you problems. Consider uninstalling it if you know what you are doing. If this does not help I would recommend you to read https://support.mozilla.org/en-US/kb/firefox-crashes-troubleshoot-prevent-and-get-help Especially the last point "Get help fixing this crash" could help me analyze the issue, but no promises :D Keep in mind that if your problem is not a crash but more a "regular" close the about:crashes tab might be empty. Also don't forget to make backups before you reset you Firefox or you might lose your personal data.
FredMcD
  • Top 10 Contributor
4274 個解決方法 59937 個答案

I jump between Firefox and other programs all the time Win 7.


In the address bar, type about:crashes<enter>. Note: If any reports do not have BP in front of the numbers/letters, click it and select Submit.

Using your mouse, mark the most resent 7 - 10 crash reports, and copy them. Now go to the reply box below and paste them in.

aboutcrashesFx29

Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac Options)
key, and then starting Firefox. Is the problem still there?


Type about:support in the address bar and press Enter. Under the main banner, press the button; Copy Text To Clipboard.. Then in the reply box at the bottom of this page, do a right click in the box and select Paste. This will show us your system details. No Personal Information Is Collected.

I jump between Firefox and other programs all the time Win 7. --------- In the address bar, type '''about:crashes'''<enter>.''' Note:''' If any reports do not have '''BP''' in front of the numbers/letters, click it and select '''Submit'''. Using your mouse, '''mark''' the most '''resent 7 - 10''' crash reports, and '''copy''' them. Now go to the reply box below and '''paste''' them in. ;[[Image:aboutcrashesFx29|width=500]] ----------------- Start '''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Firefox in Safe Mode]''' {web Link} by holding down the '''<Shift><br> ''(Mac Options)'' ''' key, and then starting Firefox. Is the problem still there? ------------ Type '''about:support''' in the address bar and press '''Enter.''' Under the main banner, press the button; '''Copy Text To Clipboard.'''. Then in the reply box at the bottom of this page, do a right click in the box and select '''Paste.''' This will show us your system details. '''No Personal Information Is Collected.'''

提出問題者

I have received several replies, and I thank you all. The recommendations were helpful in that I am learning quite a lot. Seems like I still have a lengthy reading list. Unfortunately my problem has persisted. I did find some crash reports (attached), but I doubt they are going to solve the problem either as there were only three of them, and I find firefox closes like this many times every day.

I have received several replies, and I thank you all. The recommendations were helpful in that I am learning quite a lot. Seems like I still have a lengthy reading list. Unfortunately my problem has persisted. I did find some crash reports (attached), but I doubt they are going to solve the problem either as there were only three of them, and I find firefox closes like this many times every day.
FredMcD
  • Top 10 Contributor
4274 個解決方法 59937 個答案

FredMcD said

Using your mouse, mark the most resent 7 - 10 crash reports, and
copy them. Now go to the reply box below and paste them in.

Type about:support in the address bar and press Enter.
Under the main banner, press the button; Copy Text To Clipboard..
Then in the reply box at the bottom of this page,
do a right click in the box and select Paste.
This will show us your system details.
No Personal Information Is Collected.

bp-eb0b4d83-97eb-409d-8125-9cf502150926

Product Firefox Version 40.0.3

Release Channel release OS Windows NT OS Version 6.1.7601 Service Pack 1

The crash report flagged these programs;

Signature CLocalEndpointEnumerator


This is for Sumo's Related Bugs 731812 NEW --- crash in MMDevAPI.dll when inserting or removing a usb headset

''FredMcD [[#answer-786789|said]]'' <blockquote> Using your mouse, '''mark''' the most '''resent 7 - 10''' crash reports, and<br> '''copy''' them. Now go to the reply box below and '''paste''' them in.<br> ------------ Type '''about:support''' in the address bar and press '''Enter.'''<br> Under the main banner, press the button; '''Copy Text To Clipboard.'''.<br> Then in the reply box at the bottom of this page,<br> do a right click in the box and select '''Paste.'''<br> This will show us your system details.<br> '''No Personal Information Is Collected.'''<br> </blockquote> bp-eb0b4d83-97eb-409d-8125-9cf502150926 Product Firefox Version 40.0.3 Release Channel release OS Windows NT OS Version 6.1.7601 Service Pack 1 The crash report flagged these programs; Signature CLocalEndpointEnumerator This is for Sumo's Related Bugs 731812 NEW --- crash in MMDevAPI.dll when inserting or removing a usb headset

由 FredMcD 於 修改

FredMcD
  • Top 10 Contributor
4274 個解決方法 59937 個答案

Were you using a headset? Run Firefox without it.

Were you using a headset? Run Firefox without it.

提出問題者

Although I do use both a wired, and a bluetooth headset from time to time, this problem continues when neither are in use.

Although I do use both a wired, and a bluetooth headset from time to time, this problem continues when neither are in use.
FredMcD
  • Top 10 Contributor
4274 個解決方法 59937 個答案

I've called the big guys to help you. Good luck.

I've called the big guys to help you. Good luck.

提出問題者

I am computer challenged but have every confidence in those who have stepped up to offer support. We will solve this problem.

I am computer challenged but have every confidence in those who have stepped up to offer support. We will solve this problem.
guigs 1072 個解決方法 11697 個答案

Znert said

In your Plug-Ins list I can also see one just called "5.1.40728.0". As I do not know what this is or what it does, it might be the cause of you problems. Consider uninstalling it if you know what you are doing.

I believe that this is silverlight.

The bug associated with the crash was reported with a list of troubleshooting steps that happened when they removed the bluetooth headset, but it sounds like it might be something else.

Forgive the typing out loud... Since its not an add on or ha, or the headset I might recommend trying to see if its the version of Firefox. The crash is from the previous version 40.0.3.

Also, might you have an example of a safe website where this can be reproduced, I might suggest to trouble extensions. These are not disabled in Safe Mode: Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems

''Znert [[#answer-786666|said]]'' <blockquote> In your Plug-Ins list I can also see one just called "5.1.40728.0". As I do not know what this is or what it does, it might be the cause of you problems. Consider uninstalling it if you know what you are doing. </blockquote> I believe that this is silverlight. The bug associated with the crash was reported with a list of troubleshooting steps that happened when they removed the bluetooth headset, but it sounds like it might be something else. Forgive the typing out loud... Since its not an add on or ha, or the headset I might recommend trying to see if its the version of Firefox. The crash is from the previous version 40.0.3. Also, might you have an example of a safe website where this can be reproduced, I might suggest to trouble extensions. These are not disabled in Safe Mode: [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]]

提出問題者

I had removed all extensions, and disabled hardware acceleration but my problem persisted until I removed the Plug-Ins. I rooted around in troubleshooting articles until I found out how to remove the references to the installed plugins, and removed them from the registry. I will start reconfiguring Firefox by replacing plug-ins one at a time, and hopefully will be able to share which was at the root of my trouble.

I thank all those who have contributed to my education. I may not yet be fully independant, but I am confident that I am more confident that I can do a better job of resolving issues in the future. My hats off to the support team that lurks in this program's background.

I had removed all extensions, and disabled hardware acceleration but my problem persisted until I removed the Plug-Ins. I rooted around in troubleshooting articles until I found out how to remove the references to the installed plugins, and removed them from the registry. I will start reconfiguring Firefox by replacing plug-ins one at a time, and hopefully will be able to share which was at the root of my trouble. I thank all those who have contributed to my education. I may not yet be fully independant, but I am confident that I am more confident that I can do a better job of resolving issues in the future. My hats off to the support team that lurks in this program's background.
FredMcD
  • Top 10 Contributor
4274 個解決方法 59937 個答案

Good luck, and let us know what you find.

Good luck, and let us know what you find.