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whenever I start Firefox I get the following message: "Well, this is embarrassing. Firefox is having trouble recovering your windows and tabs.

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Whenever I start Firefox I get the following message:

"Well, this is embarrassing. Firefox is having trouble recovering your windows and tabs. This is usually caused by a recently opened web page. You can try: "Removing one or more tabs that you think may be causing the problem "Starting an entirely new browsing session"

Problem persists when relaunching FF in safe mode. Problem is temporarily solved by resetting FF, but repeats and persists after navigating to any page (such as wikipedia.org), closing all tabs, quitting FF, and relaunching FF. FF pref "When FF Starts" is set to home page by default, and FF home page is set to Mozilla FF start page by default. Changing this pref "Show Blank Page" has no effect on the behavior.

Mac OS System Pref "Close windows when quitting an app" is ticked (by default). Unticking this box does not change this FF error.

2011 13" MacBook Pro Mac OS 10.8.3 Mountain Lion Firefox 20.0

Datos adicionales del sistema

Plugins instalados

  • A plugin to detect whether the Adobe Extension Manager is installed on this machine.
  • Displays Java applet content, or a placeholder if Java is not installed.
  • Shockwave Flash 11.6 r602
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in web pages. For more information, visit the QuickTime Web site.
  • Adobe® Acrobat® Plug-in for Web Browsers, Version 11.0.02
  • Microsoft Office for Mac SharePoint Browser Plug-in

Aplicación

  • Firefox 20.0
  • Agente de usuario: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:20.0) Gecko/20100101 Firefox/20.0
  • URL de asistencia: http://support.mozilla.org/1/firefox/20.0/Darwin/en-US/

Extensiones

  • Troubleshooter 1.1a (troubleshooter@mozilla.org)
  • Adobe Acrobat - Create PDF 1.2 (web2pdfextension@web2pdf.adobedotcom) (inactivo)

JavaScript

  • incrementalGCEnabled: True

Gráficos

  • adapterDescription:
  • adapterDeviceID: 0x 126
  • adapterDrivers:
  • adapterRAM:
  • adapterVendorID: 0x8086
  • driverDate:
  • driverVersion:
  • info: {u'AzureContentBackend': u'none', u'AzureCanvasBackend': u'quartz', u'AzureFallbackCanvasBackend': u'none'}
  • numAcceleratedWindows: 1
  • numTotalWindows: 1
  • webglRenderer: Intel Inc. -- Intel HD Graphics 3000 OpenGL Engine
  • windowLayerManagerType: OpenGL

Preferencias modificadas

  • browser.cache.disk.capacity: 358400
  • browser.cache.disk.smart_size.first_run: False
  • browser.cache.disk.smart_size.use_old_max: False
  • browser.cache.disk.smart_size_cached_value: 358400
  • browser.places.smartBookmarksVersion: 4
  • browser.startup.homepage_override.buildID: 20130326150557
  • browser.startup.homepage_override.mstone: 20.0
  • dom.w3c_touch_events.expose: False
  • extensions.lastAppVersion: 20.0
  • gfx.blacklist.webgl.msaa: 4
  • network.cookie.prefsMigrated: True
  • places.history.expiration.transient_current_max_pages: 104858
  • plugin.disable_full_page_plugin_for_types: application/pdf
  • privacy.sanitize.migrateFx3Prefs: True

Miscelánea

  • JS del usuario: no
  • Accesibilidad: no
ideato
  • Top 25 Contributor
616 soluciones 4262 respuestas
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Hello can you try to use Firefox > Quit to close Firefox, don't close it from [X] on the title bar, and check it again.

see also : http://kb.mozillazine.org/Firefox_hangs#Hang_at_exit


thank you

Autor de la pregunta

I'm not exactly sure what you mean by "close it from [X] on the title bar." There are only Xs on the tabs, and they don't quit the app.

I was closing all tabs and windows by pressing command-w repeatedly, then quitting the app with command-q.

If I use the menubar instead, selecting File > Close Tab for each tab, then Firefox > Quit Firefox, the issue persists.

I've just discovered that if I don't close my tabs or windows, but instead simply quit the app (either by keyboard shortcut or menubar), the error message is not shown upon the app's next launch.

This would still seem to be a bug to me, since I don't believe closing tabs or windows before quitting an app should produce an error.

txcowgirl 0 soluciones 3 respuestas
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I have the same problem, and I have closed it with Quit Firefox, and it still happens.

moats 0 soluciones 4 respuestas
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create a fresh profile, make the settings changes desired, and compare to your current profile

http://kb.mozillazine.org/Category:Profiles

Assuming you use windows (I don't):

http://kb.mozillazine.org/Creating_a_new_Firefox_profile_on_Windows


If the problem is not present in a fresh profile migrate your settings to the new profile.

Autor de la pregunta

Deleting either the "profiles.ini" file or the "~/Library/Application Support/Firefox" folder temporarily solves the issue. However, once I change the FF app general preference "When FF starts" from the default "Show my home page" setting to any other value (or to another value and then back to the default value), the error resurfaces.

Ecush 0 soluciones 3 respuestas
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I am having the same problem. I am using a Macbook and since the most recent FF update whenever I open FF I get the error message. I have tried quitting all tabs before I shut down my computer with no luck. I have reset my homepage, also with no luck. This is very frustrating.

GEORGEGIM 0 soluciones 1 respuestas
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Using "Quit" instead of X doesn't solve the problem as the message "Well, this is embarrassing... " still appears. The only way to avoid it is to get back (using the back button on the tab) to the home page. This situation affects both, my iMac (10.8.3 Mountain Lion) and my HP ProBook (Windows 7).

cmberes47 0 soluciones 7 respuestas
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Is there any fix for this? I have checked daily and see more and more people experiencing this problem, but no resolutions that are working.

Ecush 0 soluciones 3 respuestas
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Not as far as I know.

scousemax 1 soluciones 9 respuestas
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I get exactly the same as the first poster . I have also tried Reset Firefox To Its Default State and been to Firefox Preferences and selected Restore To Default. Nothing works. This happened after the update to 20.0

Modificadas por scousemax el

txcowgirl 0 soluciones 3 respuestas
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Respuesta útil

I guess the only fix is to uninstall Firefox and start using Safari, since we seem to get no response on the problem!

cmberes47 0 soluciones 7 respuestas
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Safari is not an option for Mac users. The latest upgade is not compatible and also not compatible with other applications. Guess, Chrome will be the next best bet.

scousemax 1 soluciones 9 respuestas
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I have discovered if you hit the space bar on your keyboard when the message appears after you start Firefox , the message will disappear and you should see the Mozilla Firefox Start Page . Try it .

cmberes47 0 soluciones 7 respuestas
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No, I get the page that Firefox says they can't restore.

philipp
  • Top 10 Contributor
  • Moderator
2042 soluciones 8891 respuestas
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Respuesta útil

hello, this should be addressed in a later version of firefox. as a workaround in the meanwhile you could try this: enter about:config into the firefox location bar (confirm the info message in case it shows up) & search for the preference named browser.sessionstore.resume_from_crash. double-click it and change its value to false.

scousemax 1 soluciones 9 respuestas
Publicadas

Hi philpp, Thank you for reply, it fixed the problem. I did discover from playing around that it is all to do with how you go about exiting firefox . With a mac what I would normally do ( as I do with any open programmes ) is first to close the window by clicking on the red dot ( traffic light ) as I call them before clicking on Firefox and then selecting Quit Firefox. If you do not close the window first and just click on Firefox and then choose Quit Firefox the problem does not arise.

If this is corrected on a later version will I need to go back to ( about : config ) and change its value again ? .

philipp
  • Top 10 Contributor
  • Moderator
2042 soluciones 8891 respuestas
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the problem here is essentially that firefox 20 mistakenly classifies this way of closing the browser as a crash & will launch the sessions restore feature at the next startup of the browser. the key in about:config mentioned above will totally switch off the sessionrestore feature for crashes.

once the bug will be resolved (hopefully in firefox 21) i'd recommend resetting browser.sessionstore.resume_from_crash back to its default value true again, so that you get the benefit of a restored session in case firefox is really crashing sometime.

scousemax 1 soluciones 9 respuestas
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I imagine a lot of people close there programmes on their macs in this way. Anyway I made a note of returning the setting back to its default true value after the next Firefox update. Thanks again.

Modificadas por scousemax el

cor-el
  • Top 10 Contributor
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10748 soluciones 96724 respuestas
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A possible cause can be that you are first closing all Firefox windows and then close the Firefox application.

Some have reported that closing Firefox (Firefox > Quit) while the browser window is still open works for them.

tracyvanmil 0 soluciones 2 respuestas
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If I type in about:config, I get a message that says I'm comprising the stability, security, and performance of this application. Should I ignore that? It scares me since I don't know what I'm doing!