Firefox will not be trashed won't update

I updated to FireFox 4.0 for Mac about a month or so ago. It was working fine. A couple days had passed and all of a sudden I noticed a 'Padlock' on the left corner of the Firefox Icon. I have no idea what that means. Firefox still worked but when 4.0.1 came out... It would find the update but install would fail.
So I manually downloaded the application and moved it to Applications folder but said I do not have access to those privileges. I can not 'Trash' the application or even open it at this point. (When I try to open it... it says 'You can't open the application Firefox because it may be damaged or incomplete.)
I'm all of out ideas. I'm pretty new to using a Mac so any help would be appreciated.
I am the administrator.

Please include more information, such as your Operating System (Windows?) and version, plus exactly what happens when you try to start Firefox. The information that's listed in a recent Firefox crash report, if available, might also help. See [[Firefox crashes]] under '''Get help fixing this crash''' and post any crash Report IDs recently submitted (they'll start with '''bp-''' )
Your question title says "Firefox will not open or won't start (see /questions/964132 )" I looked at that question and it was started by another Firefox user. [/questions/964132?page=2#answer-477049] has a number of suggestions if Firefox won't start. Which ones did you try?
For other possible solutions see
* [[Basic Troubleshooting]]
* http://kb.mozillazine.org/Browser_will_not_start_up
*[/questions/958850] ''Firefox won't open after restart''
Note: A "clean reinstall" was one of the suggestions in [/questions/964132]. It means removing the Firefox application files and then reinstalling Firefox from a fresh download, as explained in the "Reinstall Firefox" step in [[Basic Troubleshooting]]. If that allows you to start Firefox, but if the problem returns after restarting the computer, you should do another "clean reinstall" and then troubleshoot your plugins by disabling all of them, as suggested in the [[Basic Troubleshooting]] article.

Similar Messages

  • Firefox will not open or won't start (see /questions/964132 )

    was Ok till recently

    Please include more information, such as your Operating System (Windows?) and version, plus exactly what happens when you try to start Firefox. The information that's listed in a recent Firefox crash report, if available, might also help. See [[Firefox crashes]] under '''Get help fixing this crash''' and post any crash Report IDs recently submitted (they'll start with '''bp-''' )
    Your question title says "Firefox will not open or won't start (see /questions/964132 )" I looked at that question and it was started by another Firefox user. [/questions/964132?page=2#answer-477049] has a number of suggestions if Firefox won't start. Which ones did you try?
    For other possible solutions see
    * [[Basic Troubleshooting]]
    * http://kb.mozillazine.org/Browser_will_not_start_up
    *[/questions/958850] ''Firefox won't open after restart''
    Note: A "clean reinstall" was one of the suggestions in [/questions/964132]. It means removing the Firefox application files and then reinstalling Firefox from a fresh download, as explained in the "Reinstall Firefox" step in [[Basic Troubleshooting]]. If that allows you to start Firefox, but if the problem returns after restarting the computer, you should do another "clean reinstall" and then troubleshoot your plugins by disabling all of them, as suggested in the [[Basic Troubleshooting]] article.

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