https://support.mozilla.com/en-US/kb/Firefox%20crashes#w_getting-help-with-your-crash

The link is not helpful.

Firefox still crashes

Do the crash report mention PInvokeCalliWorker ?

• [/questions/871697]
• [/questions/870380]

If you have submitted Breakpad crash reports then post the IDs of one or more Breakpad crash reports (bp-xxxxxxxx-xxxxxxxxx-xxxx-xxxxxxxxxxxx).
You can find the IDs of the submitted crash reports on the about:crashes page.
You can open the about:crashes page via the location bar, like you open a website.

See:

• http://kb.mozillazine.org/Breakpad (Mozilla Crash Reporter)
• https://support.mozilla.com/kb/Mozilla+Crash+Reporter

no it did not

Can you post some crash IDs to check if there we can identify the cause?

Application Basics

       Name
       Firefox

       Version
       6.0.2

       User Agent
       Mozilla/5.0 (Windows NT 6.0; WOW64; rv:6.0.2) Gecko/20100101 Firefox/6.0.2

       Profile Directory

         Open Containing Folder

       Enabled Plugins

         about:plugins

       Build Configuration

         about:buildconfig

 Extensions

       Name

       Version

       Enabled

       ID

       CGPS Extension
       1.0
       true
       idvaultaddin@whitesky

       Microsoft .NET Framework Assistant
       0.0.0
       true
       {20a82645-c095-46ed-80e3-08825760534b}

       Norton Toolbar
       2011.7.1.3
       true
       {2D3F3651-74B9-4795-BDEC-6DA2F431CB62}

       Symantec IPS
       3.1
       true
       {BBDA0591-3099-440a-AA10-41764D9DB4DB}

       ArcSoft Video Downloader Extension
       3.0.0.0
       false
       {B728AB94-9BC7-49b7-B76A-422BB31B2FD0}

       Search Helper Extension
       1.0
       false
       {27182e60-b5f3-411c-b545-b44205977502}

 Modified Preferences

     Name

     Value

       browser.places.smartBookmarksVersion
       2

       browser.startup.homepage
       http://xfinity.comcast.net/home/p/

       browser.startup.homepage_override.buildID
       20110902133214

       browser.startup.homepage_override.mstone
       rv:6.0.2

       extensions.lastAppVersion
       6.0.2

       network.cookie.prefsMigrated
       true

       places.database.lastMaintenance
       1315763062

       places.history.expiration.transient_current_max_pages
       128794

       privacy.sanitize.migrateFx3Prefs
       true

 Graphics

       Adapter Description
       ATI Radeon HD 3450

       Vendor ID
       1002

       Device ID
       95c5

       Adapter RAM
       Unknown

       Adapter Drivers
       atidxx32 atidxx64 atiumdag atiumdva atiumd64 atiumd6a atitmm64

       Driver Version
       8.513.1.1000

       Driver Date
       7-28-2008

       Direct2D Enabled
       Blocked for your graphics driver version. Try updating your graphics driver to version 10.6 or newer.

       DirectWrite Enabled
       false (7.0.6002.18409)

       ClearType Parameters
       ClearType parameters not found

       WebGL Renderer
       Blocked for your graphics driver version. Try updating your graphics driver to version 10.6 or newer.

       GPU Accelerated Windows
       0/1. Blocked for your graphics driver version. Try updating your graphics driver to version 10.6 or newer.

Do you have Comcast's Constant Guard installed?

That's not a Crash ID.
Type about:crashes in the URL bar and hit Enter.
Click the hyperlinks to bring up the Crash Report pages and copy'n'paste the URL of each of those reports into the message box here. We'll see if we can help you figure out what is causing those crashes to happen.

YES - WILL CAUSE A PROBLEM

Your More system details list show a idvaultaddin@whitesky Microsoft .NET Framework Assistant extension.

Try to disable that extension to see if that helps or disable IdVault otherwise.

• https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

thanks it worked