[S] Firefox hangs on KDE install after all windows and tabs are closed

When I launch Firefox from KDE, the process hangs around consuming ~70-100% CPU of at least one core after closing all windows and tabs. We have to kill the process manually or say File->Quit and issue the real exit command instead of just closing all tabs. I ran strace and found that Firefox is poll()ing something as fast as it can after all windows are destroyed, causing the CPU increase. Anyone know how I can fix this? I've already tried a different profile and pacman -Rnd to no effect.
Last edited by cookiecaper (2010-08-27 18:06:55)

I've solved this by removing gtk-qt-engine; without gtk-qt-engine, firefox behaves as expected.

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Why are the options for "When Firefox starts" NOT clickable in Firefox 5? I want to choose "Windows and tabs that where opened last time you accessed the net" but Firefox won't let me.

In the previous version of Firefox one could choose to save tabs so that when Firefox opened, all the tabs from the previous sessions appeared. This was done in Settings > Options > General > Startup. In the menu for the "When Firefox Starts" one had the option for "Windows and tabs that where opened last time you accessed the net." in Firefox 5.0, this menu is gray and not clickable. Help, please?

''Why are the options for "When Firefox starts" NOT clickable in Firefox 5?"
Possibly you are not saving your "browsing history" which is what the session history is tied into.
'''Not saving History''' -- check your settings for '''Tools > options > Privacy'''', make sure you are not clearing more than just cache in "Settings for Clearing History"
* http://img232.imageshack.us/img232/4928/clearcachew.png
* clearing your history at end of session, cache is the only one you would want to clear at end of session, if you don't want to lose things
There are several things that are related to private browsing and not saving History
* Private Browsing Ctrl+Shift+P
* You selected "Never remember history" in first drop-down of Tools > Options Privacy and all of the check marks disappear (See picture above)
* "Permanent private browsing mode" was check-marked under "Use custom settings for history" in the first drop-down of Tools > options > Privacy (see picture above)

My tabs are all empty even though I have FF 29.0.1 set to save windows and tabs when closing

I have the setting: Startup - When firefox starts - show windows and tabs from last time.
This almost always works, but not today. The odd thing is that all the tabs are still there, including the pinned ones on the left (square empty boxes), but all the tabs are blank ("New tab").
Except one that appeared on startup, the one that was active when i closed FF last night.
If I click on History - Show all history = No items.
Restore previous session is greyed out, as are Recently closed tabs and windows.
It looks bad, what can I do to restore the previous session?
How would this have happened, and how can I prevent it in future?
Did the last FF update (today or yesterday) have anything to do with it?
There is a sessionstore.bak-[long string of numbers] dated 8/2/14, and a sessionstore.js dated 9/5/14, and a sessioncheckpoints,json dated 9/4/14 in the Profile default folder.
Below is the beginning of
Important Modified Preferences
Name Value accessibility.typeaheadfind.flashBar 0
browser.cache.disk.capacity 358400
browser.cache.disk.smart_size_cached_value 358400
browser.cache.disk.smart_size.enabled false
browser.cache.disk.smart_size.first_run false
browser.cache.disk.smart_size.use_old_max false
browser.places.smartBookmarksVersion 7
browser.sessionstore.upgradeBackup.latestBuildID 20140506152807
browser.startup.homepage https://www.google.ca/?gfe_rd=cr&ei=Csu ... 8gfC7IDQDg
browser.startup.homepage_override.buildID 20140506152807
browser.startup.homepage_override.mstone 29.0.1
browser.urlbar.autocomplete.enabled false
dom.mozApps.used true
dom.w3c_touch_events.expose false
extensions.lastAppVersion 29.0.1
font.internaluseonly.changed false
javascript.options.showInConsole false
network.cookie.lifetimePolicy 2
network.cookie.prefsMigrated true
places.database.lastMaintenance 1409808493
places.history.enabled false
places.history.expiration.transient_current_max_pages 80485
plugin.disable_full_page_plugin_for_types application/pdf
plugin.importedState true
plugin.state.npctrl 1
plugin.state.npgoogleupdate 1
print.printer_Samsung_ML-2010_Series.print_bgcolor

I'm a little puzzled that your post shows Firefox 29.0.1 but you said you updated this week (Firefox 32.0 was released this week). ???
One of your settings is '''places.history.enabled''' = false, which could be a problem for saving history. I'm not sure how that could have gotten switched. Could you check here:
"3-bar" menu button (or Tools menu) > Options > Privacy
Under "Firefox will: Use custom settings for history" make sure you have the settings you want.
Note: I think I have read that if Firefox is set to clear history at shutdown, then Firefox might not save any history during your session.
Can you find an Old Firefox Data folder on your desktop? If the Reset feature ran, your old data would be in that folder and we could discuss how to restore them.

Safari 5.1 - Clicking on pull down list reloads all windows and tabs

Clicking on a <select> tag option on my website has the effect of reloading every windows and tab there is currently open. It worked fine on Safari 5.0 and works fine on other browsers. Happens on two different computers, yet it does not happen with every pull down list, only with the ones that have the grey line before the arrows.
Example:
http://festhome.com/festhome_cake/registro
Clicking on the year, country, whatever, they all reload everything on the browser.
Thanks for any help...

When you apply certain styles to a select tag, Safari switches to a "design-friendly" dropdown control without any Aqua styling. That's what you're seeing when you get the "gray line" before the arrows.
So far, I've determined that going into the Web Inspector and removing styles until Safari uses the default Aqua control fixes the problem.
But, if I build a test page from scratch, and it has a "design-friendly" select it works fine. So, there's some combination of things at work here. The "design-friendly" control certainly seems to be the linchpin, though.
I can't spend any more time on it at work today, but I might futz with it some more tonight.

After restarting my Laptop Firefox forgot althoug it's synced all groups and tabs. There is no error message concerning the sync behaviour.

It seems, that the sync server forgot all my tabs and groups, as Firefox dooesn't report any error. Any ideas?

Remove the SYNC and reconnect it.
Check the SYNC log
*about:sync-log

Hello??? Android??? Why is'nt there a version for Android users. After all Samsung and Wacom are the only two companies making tablets for artist...

Apple left artist behind years ago. Why are these new mobile apps only available in ios? I use a much more sophisticated tablet than your dad's iPad. My Samsung Galaxy Note 10.1 has over 1,000 points of pressure sensitivity and was built with Wacom technology for artist, yet the premiere artist programs only release these mobile apps in the apple app format???
Even the Adobe evangelist use windows based operating systems in 90% of the videos I watch on;line, so why are we still pretending Apple is the only platform that matters, while leaving many serious artist out in the cold? Get these apps on the Google Play store ASAP, please.

I agree! My Samsung Galaxy Note 10.1 (2014) is amazing! The Wacom technology that been built into it is amazing. I saddens mute than words can say when Adobe took all their touch apps out of the Play Store and stopped working on the android versions. I must say the other I went to take a photo with an iPad and I saw so disappointed that all is did was snap a photo. I guess I'm spoiled with all the amazing things my galaxy can do while in the built in standard photography mode. You IOS people are really missing out on a great thing here! Just go and try to play with one either in the air or with a friend's tablet. I guarantee you will be blown away!

Firefox 36.0.4 randomly crashes without warning and especially when mutiple windows and tabs are open-never happened earlier, very frequent now.

I am currently researching for an article to write and consequently have many PDFs open simultaneously. I use the Foxit PDF plug in.
However, I've been doing this for very long now and have never faced such crashes where all my windows close without a warning despite there being no other processes running. I get no warning whatsoever. I usually also have YouTube and Gmail open as well. The crashes have happened far too frequently in the past 4-5 days for me to ignore it and assume it to be a rare fault.

enter the menu go to help or ? and start with addons disabled. if it still doesnt work follow this description https://support.mozilla.org/en-US/kb/firefox-crashes-troubleshoot-prevent-and-get-help

Q: How do you sync all open windows and tabs?

How do you sync all windows and tabs? And if this is not possible, how do you nominate which Windows' tabs are sync'd?
Sincerely,
Adam

You don't have a hot-corner for that anymore.
You use a gesture for that now. You can either 4-finger swipe down, or place the tips of your fingers in the center of your track pad. Your fingers should be bunched up and touching each other. To show all windows, expand your fingers, as if you were showing someone "5" on your fingers.

Bug Report : Upgraded to Firefox v10. Holding CTRL+ [F4] too long after all tabs are closed causes error. "Exc in ev handl: TypeError: this.oPlg.onTabClosed is not a function"

Bug Report :
Upgraded to Firefox v10. Holding CTRL+ [F4] too long after all tabs are closed causes error.
"Exc in ev handl: TypeError: this.oPlg.onTabClosed is not a function"

What extensions do you have? (Go to Firefox > Customize > Add-ons to see or Help > Troubleshooting info for a copy-pasteable list)

I want to have all my tabs return after closing. In Tools/Options/General/ I have' Show my Windows and Tabs from last time' checked, but it does not work. When I open FF again none of my formerly open Tabs show... FF v.4.

When I open FF up again after I have closed it, I want all tabs to return. In Tools/Options/General/ I have' Show my Windows and Tabs from last time' checked-does not work. In addition, the feedback window fails to 'Submit...!'

Some things to check:
#'''Browsing history must be saved'''
#*Firefox button: Firefox button > Options > Options > Privacy > [X] Remember my browsing history
#*Menu Bar: Tools > Options > Privacy > [X] Remember my browsing history
#'''Also make sure you do not clear "Browsing History" when using Clear Recent History or when closing Firefox'''
#*Using Clear Recent History
#**Firefox button: Firefox button > History >Clear Recent History
#**Menu Bar: Tools > Clear Recent History
#*When closing Firefox
#**Firefox button: Firefox button > Options > Options > Privacy (checked) > Settings
#**Menu Bar: Tools > Options > Privacy (checked) > Settings
#**See: https://support.mozilla.com/en-US/kb/Clear%20Recent%20History
#'''Make sure you are not in Private Browsing mode''' or '''in permanent Private Browsing mode''':
#*See: https://support.mozilla.com/en-US/kb/Private%20Browsing
#'''If you have the'''Tab Mix Plus'''extension''', then disable the built-in session restore.

When closing Firefox, after reopening it, my tabs are gone, even though I have Firefox set to remember session.

When closing Firefox, after reopening it, my tabs are gone, even though I have Firefox set to remember session. However, after several hours and opening and closings of Firefox, it will open tabs from the old session, for no apparent reason.

You can check for problems with the sessionstore.js and sessionstore.bak files in the Firefox profile folder that store session data.
Delete the sessionstore.js file and possible sessionstore-##.js files with a number and sessionstore.bak in the Firefox profile folder.
*Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)
*http://kb.mozillazine.org/Profile_folder_-_Firefox
*http://kb.mozillazine.org/Multiple_profile_files_created
Deleting sessionstore.js will cause App Tabs and Tab Groups and open and closed (undo) tabs to get lost and you will have to recreate them (make a note or bookmark them if possible).
In case you are using "Clear history when Firefox closes":
*do not clear the Browsing History
*Tools > Options > Privacy > Firefox will: "Use custom settings for history": [X] "Clear history when Firefox closes" > Settings
*https://support.mozilla.org/kb/Clear+Recent+History
Note that clearing "Site Preferences" clears all exceptions for cookies, images, pop-up windows, software installation, and passwords.

I can't find firefox.exe on my hard drive after a reboot; is there a way to restore previous windows and tabs after I reinstall?

I closed firefox and rebooted. After rebooting, I tried to load Firefox but the firefox.exe file was nowhere on the hard disk.
I would like to restore my previous windows and tabs. How do I do this?

It is one or the other. Since you're Restored the phone from the previous backup, the new content is gone (unless you did a separate backup) and whatever was in the old backup is all you've got. And there is no merging capabilities.
Beware that if you do not password-protect a locally-stored backup made on iTunes on a computer, not all the content gets saved. I suspect it is similar when using iCloud, but I never use that so don't know for sure. Just Restored my new iPhone 6+ from the full backup of the previous iPhone 5 and all was there save a few passwords such as iCloud.

Sometimes when i start up Firefox, all my app tabs are missing and i can not get them back unless i physically go do them all again. all my settings are correct as per the trouble shooting pages, but it keeps happening randomly every 1-2 weeks.

When firefox starts, normally, not after a crash or restore, all the tabs i have pinned as app tabs disappear. I have to go do them all again, and this has happened at least 5-6 times now.

App (pinned) tabs and Tab Groups (Panorama) are stored as part of the session data [1] in the file sessionstore.js [2] in the Firefox profile folder [3].
Make sure that you do not use "Clear Recent History" to clear the "Browsing History" when Firefox is closed because that prevails and prevents Firefox from opening tabs from the previous session.
* https://support.mozilla.com/kb/Clear+Recent+History
* [1] http://kb.mozillazine.org/Session_Restore
* [2] http://kb.mozillazine.org/sessionstore.js
* [3] http://kb.mozillazine.org/Profile_folder_-_Firefox Firefox
It is also possible to use the "Show my windows and tabs from last time" setting, that is usually a more reliable way to restore session data.
* [http://kb.mozillazine.org/Menu_differences Firefox/Tools > Options] > General > Startup: "When Firefox Starts": "Show my windows and tabs from last time"
If you use cleanup software like CCleaner then make sure that Session is unchecked in the settings for the Firefox application.
*App Tab Initializer: https://addons.mozilla.org/firefox/addon/app-tab-initializer/

I installed Identity Finder, and I have to enter a password to get into Firefox, which I like. However, even though my settings are set to "Show my windows and tabs from last time," I have to manually click on each one to add in a new tab each time. An

I installed a security program called Identity Finder whick requires a master password for Firefox on my laptop, which I like. However, even though my settings are to "Show my windows and tabs from last time," I have to manually add each link in a new tab each time. Any suggestions? Thanks in advance.

Pure speculation, but maybe that Identity Finder program is deleting your browsing history which is how Firefox restores tabs and windows from the previous session. Check with technical support for that program or look at the manual.

The new Firefox opens all the old tabs it closed with, when it starts. I'd rather just start a new session. How can I make that the default setting?

The new Firefox re-opens all the tabs it closed with; and, I'd rather just start a new session, as the default setting. How can I do this? It would make it easier on me, the machine, and the Internet feed, not to reload automatically a bunch of tabs that were just closed. There must be someway to fix this. This happens on my brother's Windows computer, as well; and, it's running Firefox 4. Thanks for your help.

Make that "Firefox ->Preferences -> General -> When Firefox starts: "Show my windows and tabs from last time" is not selected as this is not the default.
Basically this setting will make Firefox start with whatever windows and tabs that were last open when a user closes Firefox by way of File ->Quit/Exit as if Firefox was never closed.

[S] Firefox hangs on KDE install after all windows and tabs are closed

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