I can't reinstall firefox 7.0.1

I uninstalled firefox in windows 7 because of audio problems in the browser. I then tried to reinstall it. I downloaded version 7.0.1. I ran the installer and it extracted files and it gave a message :
"you may not have the necessary permissions to use all of the features of this program. you may run this program as a different user or continue to run the program as the current user"
I selected current user and the small window went away and nothing happened.

Are you able to start Firefox in its Safe Mode? That's a standard diagnostic tool to deactivate extensions and some advanced features of Firefox. More info: [[Troubleshoot Firefox issues using Safe Mode]].
You can restart Firefox in Safe Mode using either:
* "3-bar" menu button > "?" button > Restart with Add-ons Disabled
* Help menu > Restart with Add-ons Disabled
Not all add-ons are disabled: Flash and other plugins still run
After Firefox shuts down, a small dialog should appear. Click "Start in Safe Mode" (''not'' Reset).
(Yes, Reset is an option there, but it could be useful to try Safe Mode first if you can.)
If Firefox is not running, you can try holding down the Shift key when starting Firefox to get to the Safe Mode/Reset dialog.

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Hello JMcIntee, # In the [[Location bar autocomplete|Location bar]], type '''about:config''' and press '''Enter'''. The about:config "''This might void your warranty!''" warning page may appear.
# Click '''I'll be careful, I promise!''', to continue to the about:config page.
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Question
I am about to replace my hard drive. How can I reinstall firefox and still keep all my bookmarks and other related information

Profile is a folder which store all your personal data in a safe place
* https://support.mozilla.com/en-US/kb/Profiles
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When I bring up my Mozillafirefox, all I get is a window with a blank white screen. (I 'reinstalled' Firefox 3.66 about a month and a half ago, (and lost all my bookmarks as a result therein), and hope I can get my firefox back this time without having t

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== This happened ==
Every time Firefox opened
== June 30, 2010 ==
== User Agent ==
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727)

same problem. wtf. just happened one day when i went to use it. nothing out of the ordinary installed either....

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Create a new profile as a test to check if your current profile is causing the problems.
See "Basic Troubleshooting: Make a new profile":
*https://support.mozilla.com/kb/Basic+Troubleshooting#w_8-make-a-new-profile
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*http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

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Hello,
Certain Firefox problems can be solved by performing a ''Clean reinstall''. This means you remove Firefox program files and then reinstall Firefox. Please follow these steps:
'''Note:''' You might want to print these steps or view them in another browser.
#Download the latest Desktop version of Firefox from http://www.mozilla.org and save the setup file to your computer.
#After the download finishes, close all Firefox windows (click Exit from the Firefox or File menu).
#Delete the Firefox installation folder, which is located in one of these locations, by default:
#*'''Windows:'''
#**C:\Program Files\Mozilla Firefox
#**C:\Program Files (x86)\Mozilla Firefox
#*'''Mac:''' Delete Firefox from the Applications folder.
#*'''Linux:''' If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see [[Installing Firefox on Linux]]. If you downloaded and installed the binary package from the [http://www.mozilla.org/firefox#desktop Firefox download page], simply remove the folder ''firefox'' in your home directory.
#Now, go ahead and reinstall Firefox:
##Double-click the downloaded installation file and go through the steps of the installation wizard.
##Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.
Please report back to see if this helped you!
Thank you.

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David. Thank you very much. The problem was not with the canvas but rather the Viewer. But the solution was the same. Somehow, the Viewer window was re-set to Alpha. I changed it back to RGB.... and the picture is back. These issues are often very simple.... but they can drive you bats if you don't know the answer. Very grateful. Tim

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see : [http://answers.microsoft.com/en-us/windows/forum/windows_7-files/cant-create-anymore-new-folders-in-windows-7/721a9129-c800-4224-8779-805dd6dfb80e Can't create anymore New Folders in Windows 7]
[http://social.technet.microsoft.com/Forums/en-US/w7itprogeneral/thread/97de8a2a-12f2-4381-a409-a78f4ae551cf/ Cannot create new folder in Windows 7]
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It is possible that there is a problem with the files sessionstore.js and sessionstore.bak in the Firefox Profile Folder.
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*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:
*http://kb.mozillazine.org/Session_Restore
*http://kb.mozillazine.org/sessionstore.js
*http://kb.mozillazine.org/Multiple_profile_files_created

I can't reinstall firefox 7.0.1

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