Windows 8.1, transparency and tabs unreadable

I have a new install of Firefox on a new Alienware M15x laptop. No extensions, up-to-date drivers; it is a brand new install.
And, because of either Firefox or Windows, my tabs are all transparent, so if there is anything behind firefox other than the background, I can't read the text on the tabs. I've spent more than an hour trying to figure out what is going on without success; it is probably Firefox, since it doesn't happen in IE or Chrome. Any suggestions?

As a new install, this will not cause you major problems.
'''[https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and-settings Refresh Firefox]''' {web link} is a '''LAST RESORT ! !'''
Refresh Firefox - reset add-ons and settings
If you're having problems with Firefox, refreshing it can help. The refresh feature fixes many issues by restoring Firefox to its default state while saving your essential information like bookmarks, passwords, and open tabs.

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Window manager issues, transparency and focus

I recently moved from Linux to Mac and miss a couple of things. If someone can point out how to do these things in OS X, I would appreciate it.
1) When one window of an application receives focus, raise all windows of that application.
I use a statistical package that has separate windows for output, commands and variables. If these windows get buried below other windows, I need to give focus to all windows separately. The optimal case would be that when I focus on one window, all of these windows are brought to front.
2) Force all windows of an application to stay on the same virtual desktop (space).
This is a problem that occurs particularly with Word 2008. The software has the main window and a tool box window. Sometimes the toolbox and the main window get separated to different spaces. It is very annoying to give focus to the application and to realize that the first thing to do is to hunt after the main window in another space.
3) When moving a mouse cursor over a window, make all windows that cover it transparent.
This is my favourite feature of compiz fusion. The idea is that you can peek behind windows without shifting the focus. Also, it enables you to read a web page on full screen while typing notes on a text editor that is above the web page. Anything similar possible in OS X?
Mikko

I recently moved from Linux to Mac and miss a couple of things. If someone can point out how to do these things in OS X, I would appreciate it.
1) When one window of an application receives focus, raise all windows of that application.
I use a statistical package that has separate windows for output, commands and variables. If these windows get buried below other windows, I need to give focus to all windows separately. The optimal case would be that when I focus on one window, all of these windows are brought to front.
2) Force all windows of an application to stay on the same virtual desktop (space).
This is a problem that occurs particularly with Word 2008. The software has the main window and a tool box window. Sometimes the toolbox and the main window get separated to different spaces. It is very annoying to give focus to the application and to realize that the first thing to do is to hunt after the main window in another space.
3) When moving a mouse cursor over a window, make all windows that cover it transparent.
This is my favourite feature of compiz fusion. The idea is that you can peek behind windows without shifting the focus. Also, it enables you to read a web page on full screen while typing notes on a text editor that is above the web page. Anything similar possible in OS X?
Mikko

Every time I launch Firefox 4 it opens 3 or 4 blank windows, no longer opens the tabs from the previous session and does not show my bookmarks sidebar.

I have to manually close the extra windows and restore the tabs from the previous session, and reopen the sidebar. In disgust I uninstalled Firefox 4 and reinstalled 3.6. Everything works fine in 3.6. Looks to me like Firefox 4 has many major bugs and is not yet ready for prime time. I'll stay with 3.6 for now.

This can be a problem with the files [http://kb.mozillazine.org/sessionstore.js sessionstore.js] and sessionstore.bak in the [http://kb.mozillazine.org/Profile_folder_-_Firefox Profile Folder]
Delete [http://kb.mozillazine.org/sessionstore.js sessionstore.js] and sessionstore.bak in the [http://kb.mozillazine.org/Profile_folder_-_Firefox Profile Folder]
* Help > Troubleshooting Information > Profile Directory: Open Containing Folder
If you see files sessionstore-##.js with a number in the left part of the name like sessionstore-1.js then delete those as well. 
You will have to redo App Tabs and Tab Groups after deleting sessionstore.js.
See:
* http://kb.mozillazine.org/Session_Restore

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.

"show my windows and tabs from last time" does not work after upgrade to 8.01

After I upgraded to the latest v8.01 I have lost all my tabbed sites and even when trying to add them and save them with the Tools>Options>General>Start up>when Firefox starts selected feature "show my windows and tabs from last time" it does not hold the saved sites and when browser is restarted it always loses all the tabs and only shows one tab with Firefox home webpage. I need to have several sites open to work and the only way to do that now is to make sure I click the "Use current pages" under General Option in Tools. It is getting very annoying because I keep changing my tabs to different websites during a session and I am used to just closing the browser, relying on having them all back in when restarting Firefox.

Make sure that you do not use Clear Recent History to clear the Browsing History when you close Firefox.
*https://support.mozilla.com/kb/Clear+Recent+History
*https://support.mozilla.com/kb/Firefox+does+not+ask+to+save+tabs+and+windows+on+exit
It is possible that there is a problem with the files sessionstore.js and sessionstore.bak in the Firefox Profile Folder.
Delete the sessionstore.js [2] file and possible sessionstore-##.js [3] files with a number and sessionstore.bak in the Firefox Profile Folder.
* Help > Troubleshooting Information > Profile Directory: Open Containing Folder
* http://kb.mozillazine.org/Profile_folder_-_Firefox
Deleting sessionstore.js will cause App Tabs and Tab Groups and open and closed (undo) tabs to get lost, so you will have to create them again (make a note or bookmark them).
See also:
* [1] http://kb.mozillazine.org/Session_Restore
* [2] http://kb.mozillazine.org/sessionstore.js
* [3] http://kb.mozillazine.org/Multiple_profile_files_created

Firefox 4.0.1 closes with no error message. When I restore the session I get: Well, this is embarrassing. Firefox is having trouble recovering your windows and tabs. This is usually caused by a recently opened web page. What can I do?

After opening certain websites, pogo, firefox 4.0.1 closes with no error message. When I restore the session I get: Well, this is embarrassing. Firefox is having trouble recovering your windows and tabs. This is usually caused by a recently opened web page.
I have had this problem before and had to reinstall an earlier version of firefox.
The error console has a long list of errors, many of them end with: does not implement nsIObserver. Is there a way to send the information on the error console to firefox support?
Redownloading Firefox 4.0 will fix my problem until I either close firefox or turn off my computer. The problem recurs when I open firefox again.

See:
* http://kb.mozillazine.org/Firefox_crashes
* https://support.mozilla.com/kb/Firefox+crashes
It is also possible that there is a problem with the files [http://kb.mozillazine.org/sessionstore.js sessionstore.js] and sessionstore.bak in the [http://kb.mozillazine.org/Profile_folder_-_Firefox Profile Folder]
Delete the files sessionstore.js and sessionstore.bak in the Firefox Profile Folder.
* Help > Troubleshooting Information > Profile Directory: Open Containing Folder
* http://kb.mozillazine.org/Profile_folder_-_Firefox
* http://kb.mozillazine.org/sessionstore.js
If you see files sessionstore-##.js with a number in the left part of the name like sessionstore-1.js then delete those as well. 
Deleting sessionstore.js will cause App Tabs and Tab Groups to get lost, so you will have to create them again (make a note).
See:
* http://kb.mozillazine.org/Session_Restore

I noticed when I restart Firefox 4, it opens my previous tabs even I set the option "Open a blank page" and it opens blank page when I have "Show my windows and tabs from last time". Please ignore my question if you're already aware of this issue. Thanks.

I noticed when I restart Firefox 4, it opens my previous tabs even I set the option "Open a blank page" and it opens blank page when I have "Show my windows and tabs from last time". Please ignore my question if you're already aware of this issue. Thanks.

Your previous tabs will not re-open or be available to re-open when starting Firefox if:
*your previous session was in Private Browsing mode; see --> http://support.mozilla.org/en-US/kb/Private+Browsing
*you use Clear Recent History (''Firefox button > History > Clear Recent History'' or ''Tools > Clear Recent History''); see --> https://support.mozilla.org/en-US/kb/Clear%20Recent%20History#w_how-do-i-clear-my-history
*you clear History automatically when closing Firefox; see --> https://support.mozilla.org/en-US/kb/Clear%20Recent%20History#w_how-do-i-make-firefox-clear-my-history-automatically
NOTE: Your third-party Plugins (Add-ons > Plugins) are not in the "Application Basics" (Troubleshooting Information) in the "More system details" of your original post. Third-party Plugins are categorized separately in "Installed Plugins" under "More system details". You should review but not change the Plugins as detected automatically by the software on this forum when posting a question.
If you problem still exists after checking the above, the problem could be caused by one or more of your Extensions or Plugins:
*See --> [http://support.mozilla.org/en-US/kb/Troubleshooting+extensions+and+themes Troubleshooting extensions and themes]
*See --> [http://support.mozilla.org/en-US/kb/Troubleshooting+plugins Troubleshooting plugins]
*See --> [http://support.mozilla.org/en-US/kb/Basic+Troubleshooting Basic Troubleshooting]
'''If this reply solves your problem, please click "Solved It" next to this reply when signed-in to the forum.'''

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.

How can i delete all history, except open windows and tabs?

hi, i can not find any way to delete all my firefox history, except open windows and tabs.
i could not find any solution about in the web. i did try almost all settings in privacy settings, nothing works. any ideas how to do that, or maybe suggestions for add ons?

Hello,
Have you looked in:
* History (or [[Image: New Fx Menu]] > History) > Clear Recent History...
You can choose what you want cleared and the time frame.

Is there a way to use Sync to restore the windows and tab groups I had on my previous computer?

I recently set up a new computer. Signing into Sync restored my bookmarks but not my Firefox windows and tab groups. I can get a LIST of "Tabs From Other Devices" to show up, but what I want to do is to restore the session from my previous computer. Is it possible to do this with Sync? I thought that this was supposed to be one of the things it was for.

You can copy the sessionstore.js file in the current Firefox profile folder to an USB stick and copy that file to the profile folder on the other computer.
*http://kb.mozillazine.org/sessionstore.js
*https://support.mozilla.org/kb/Recovering+important+data+from+an+old+profile
*http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox
You can use this button to go to the currently used Firefox profile folder:
*Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)

Why does Firefox not open my windows and tabs from last time until I have tried starting 3 or 4 times?

I have this problem with opening Firefox:
My Startup options are set to "When Firefox starts: Show my windows and tabs from last time"
However, each time I start Firefox, by clicking the icon in the Taskbar, it opens with a single blank tab.
I repeat this using "Open New Window" and when I have up to 3 windows, all with single blank tabs open, I close them all. Once more I use "Open New Window" which only then opens with my windows and tabs from last time.
Naturally, this induces initial panic each time, because I dread the thought of losing all my current tabs.
What is going on here?
How can I fix it?
< Firefox 27.0.1 with Windows 7 Home Premium.>

This started happening to me with the upgrade to v30. Previously, new windows did the proper thing of showing previous tabs/windows.
I have history on, not in private mode, and have cleared cache.

In Options -- General -- I want the option to "Show my windows and tabs from last time" AND "Show my homepage", but that choice isn't given. When I open a new tab, I'd like to see my iGoogle page, not a blank screen. Hope you can help. D

In Options --> General --> I want the option to "Show my windows and tabs from last time" '''''AND''''' "Show my homepage", but that choice isn't given. When I open a new tab, I'd like to see my iGoogle page, not a blank screen. Hope you can help. D

You can middle-click or Ctrl left-click the Home button on the Navigation toolbar to open the Home page in a new tab.
You can look at one of these extensions:
* NewTabURL : https://addons.mozilla.org/firefox/addon/newtaburl/
* New Tab Homepage : https://addons.mozilla.org/firefox/addon/new-tab-homepage/

System no longer does session restore but when trying to configure, it does not provide me with the option to show windows and tabs from last session

Before I updated the latest version of Firefox, every time the browser shuts down in error, I would get the System Restore feature which was really nice. Now, this no longer happens and when I went to configure this ability, it does not even provide me with the option to select to show windows and tabs from the last session. How can I get the restore session feature working again?

Make sure that you do not run Firefox in permanent Private Browsing mode.
*https://support.mozilla.com/kb/Private+Browsing
*You enter Private Browsing mode if you select: Tools > Options > Privacy > History: Firefox will: "Never Remember History"
*To see all History and Cookie settings, choose: Tools > Options > Privacy, choose the setting Firefox will: Use custom settings for history
* Deselect: [ ] "Permanent Private Browsing mode"
* http://kb.mozillazine.org/Session_Restore
* https://support.mozilla.com/kb/Session+Restore

"Show my windows and tabs from last time" not working, Mac OS 10.6.4, FF 3.8.10 or FF 4 Beta 6

I have tried any number of times to get this to work, but it's still not working. On my other Mac with OS 10.6.4 and FF 3.6.8/10 the "show my windows and tabs from last time" is working just fine.
I have checked some of the settings in about:config per some of the other forum posts with resolution to this issue, but this hasn't worked for me. Especially Since some settings have changed in the more recent versions of FF.
I'm pretty sure my settings are correct. Is anyone else having this same issue?
On the Mac exhibiting the issue it prompts me if I want to close all open tabs when the red X is clicked, when I quit firefox it keeps my tabs open just fine when firefox starts up the next time. This is normal behavior, but when the feature in question is active it overrides this behavior, on my other mac, and just stores my last session so that when I open firefox all is as it was before it was closed (either closing it via quit or with the red X will do the trick).
On my new mac, the prompt to close open tabs never goes away and my tabs just vanish, whichever way I close firefox.
I hope that was clear enough. Thanks for any help.

See http://kb.mozillazine.org/Session_Restore
If you use [[Clear Recent History]] in Firefox 3.5 and later to clear the 'Browsing History' when you close Firefox then restoring tabs from the last session ("Save & Quit" or "Show my windows and tabs from last time") doesn't work.

Why is the "Show my windows and tabs from last time) option in Options- General is grayed out and will not let me restore previous sessions?

After updating to Firefox 6, the option in the Options-> General section to "Show my windows and tabs form last time" is grayed out and will not allow me to set it. If I go to the Firefox homepage, the option does not appear, nor does it appear if I go under the History or Firefox tab.
I tried to follow the directions on this website on the Session Restore page, but that seems out of date or just not helping.
I even went to the about:config (about:session restore does not work) and there was nothing I saw that would work

Firefox 6 seems to change your settings in Tools Options Privacy to "Never remember history". Once you change this to "Remember history" it will restore your previous session, as long as the setting in Tools Options General Startup is set to "Show my windows and tabls from last time"
Bad idea Mozilla - installing 6 should pick up your settings from 5. This problem will confuse many users.

Windows 8.1, transparency and tabs unreadable

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