After an auto update firefox will not open due to an incomplete update

firefox performed an automatic update 4 days ago. It is 3.6 version. once the browser closed it refuses to reopen-message reads you must restart firefox-update was incomplete. When you restart and try to open the browser-you get the same message. If you try to uninstall-you get the same message. Nothing works

Remove the files and folders to reset the software update feature as shown here http://kb.mozillazine.org/Software_Update#Software_Update_not_working_properly
Delete the Firefox installation directory, default location C:\Program Files\Mozilla Firefox\
Download the setup file from http://www.mozilla.com and run it to re-install. Doing this will not remove your bookmarks or other user data.

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We're sorry to hear that your Firefox seems to be crashing when you open it. Please perform the following steps to give us a crash report ID that helps us find out more about the cause of the crash.
#Press the following shortcut to get a Run window: [Windows] + [R]. This should bring up a window that contains a text field.
#In that text field, enter %APPDATA% and press Enter. An explorer window should open.
#From that explorer window, double-click on the ''Mozilla'' folder, then double-click on ''Firefox'' and then on ''Crash reports''. Double-click on ''submitted''.
#Now, you should see a list of files that contain reports. Go to ''View'' > ''Arrange Icons by'' > ''Modified'' to get the most recent files at the top of the window.
#Open the most recent 5 files with a text editor and copy the IDs.
#Paste each ID with '''bp-''' into the reply window on the forums.
Thanks in advance!
You can find more information and troubleshooting steps in the [[Firefox crashes]] article.

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== This happened ==
Every time Firefox opened
== auto update ==
== User Agent ==
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; DigExt; GTB6.5; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)

Have you tried to start Firefox in [[Safe Mode]]?
What about [[Managing profiles]]?
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Hello,
Try start in Safe Mode:
*[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Firefox in safe mode]
Also see this article:
*[https://support.mozilla.org/en-US/kb/firefox-does-not-work-common-fixes Firefox does not work - Common fixes to get you back up and running]

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This is what happens when Firefox is Reset [https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems].
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After an auto update firefox will not open due to an incomplete update

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