If you download and install http://fpdownload.macromedia.com/pub/flashplayer/current/licensing/win/install_flash_player_11_plugin_32bit.exe, does it work better?

Ummmm...it 32-bit of flash player......I ran windows 7 x64

Yes, but firefox is a 32 bit program, which means it needs 32 bit plugins. That could be the reason you are having troubles. try installing that link and tell me if it works.

Hey....it work...thank....btw if I need to install flash on firefox again (in future like a reinstall windows etc) do I need use this only?

Yep, you can use that link to download Flash anytime

I'm having this problem, too. I have tried using all of the uninstallers, completely uninstalilng and re-installing firefox, rebooting, etc. Then I use the 32bit installer linked to by Tyler, and Firefox still reports a missing plugin when I hit a page with flash content.

First, restart your PC, run the installer again with Firefox closed, Do you still have the issue? If you don't, awesome. If you do, try going into your profile (Back up and restore information in Firefox profiles shows you where it is) and delete the "pluginreg.dat" file. (with firefox closed)

Tyler, thanks for the suggestion, but it didn't help. I have now completely uninstalled Firefox and removed all profiles and data, uninstalled flash, and rebooted. So I now have a clean install of firefox 13.0b1 and and 32 bit flash 11.2.202.233. And I still get prompted to install flash whenever I visit a flash site.

Please type "About:plugins" into your address bar (without quotes) and press enter. copy and paste that info into this thread. And you installed Flash for browsers other than Internet Explorer, not Flash ActiveX Right?

Yes, flash for non-ActiveX.

Google Talk Plugin

   File: npgoogletalk.dll
   Version: 2.8.7.6830
   Version 2.8.7.6830

MIME Type Description Suffixes application/googletalk Google voice and video chat googletalk Google Talk Plugin Video Accelerator

   File: npgtpo3dautoplugin.dll
   Version: 0.1.44.15
   Google Talk Plugin Video Accelerator version:0.1.44.15

MIME Type Description Suffixes application/vnd.gtpo3d.auto Google Update

   File: npGoogleUpdate3.dll
   Version: 1.3.21.111
   Google Update

MIME Type Description Suffixes application/x-vnd.google.update3webcontrol.3 application/x-vnd.google.oneclickctrl.9 Adobe Acrobat

   File: nppdf32.dll
   Version: 10.1.2.45
   Adobe PDF Plug-In For Firefox and Netscape 10.1.2

MIME Type Description Suffixes application/pdf Acrobat Portable Document Format pdf application/vnd.adobe.pdfxml Adobe PDF in XML Format pdfxml application/vnd.adobe.x-mars Adobe PDF in XML Format mars application/vnd.fdf Acrobat Forms Data Format fdf application/vnd.adobe.xfdf XML Version of Acrobat Forms Data Format xfdf application/vnd.adobe.xdp+xml Acrobat XML Data Package xdp application/vnd.adobe.xfd+xml Adobe FormFlow99 Data File xfd QuickTime Plug-in 7.7.1

   File: npqtplugin7.dll
   Version: 7.7.1.0
   The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.

MIME Type Description Suffixes image/tiff TIFF image tif,tiff image/x-tiff TIFF image tif,tiff image/jp2 JPEG2000 image jp2 image/jpeg2000 JPEG2000 image jp2 image/jpeg2000-image JPEG2000 image jp2 image/x-jpeg2000-image JPEG2000 image jp2 QuickTime Plug-in 7.7.1

   File: npqtplugin6.dll
   Version: 7.7.1.0
   The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.

MIME Type Description Suffixes video/x-m4v Video m4v image/x-macpaint MacPaint image pntg,pnt,mac image/pict PICT image pict,pic,pct image/x-pict PICT image pict,pic,pct image/png PNG image png image/x-png PNG image png image/x-quicktime QuickTime image qtif,qti image/x-sgi SGI image sgi,rgb image/x-targa TGA image targa,tga QuickTime Plug-in 7.7.1

   File: npqtplugin5.dll
   Version: 7.7.1.0
   The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.

MIME Type Description Suffixes audio/3gpp 3GPP media 3gp,3gpp video/3gpp2 3GPP2 media 3g2,3gp2 audio/3gpp2 3GPP2 media 3g2,3gp2 video/sd-video SD video sdv application/x-mpeg AMC media amc video/mp4 MPEG-4 media mp4 audio/mp4 MPEG-4 media mp4 audio/x-m4a AAC audio m4a audio/x-m4p AAC audio m4p audio/x-m4b AAC audio book m4b QuickTime Plug-in 7.7.1

   File: npqtplugin4.dll
   Version: 7.7.1.0
   The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.

MIME Type Description Suffixes video/mpeg MPEG media mpeg,mpg,m1s,m1v,m1a,m75,m15,mp2,mpm,mpv,mpa audio/mpeg MPEG audio mpeg,mpg,m1s,m1a,mp2,mpm,mpa,m2a audio/x-mpeg MPEG audio mpeg,mpg,m1s,m1a,mp2,mpm,mpa,m2a video/3gpp 3GPP media 3gp,3gpp QuickTime Plug-in 7.7.1

   File: npqtplugin3.dll
   Version: 7.7.1.0
   The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.

MIME Type Description Suffixes audio/x-gsm GSM audio gsm audio/AMR AMR audio AMR audio/aac AAC audio aac,adts audio/x-aac AAC audio aac,adts audio/x-caf CAF audio caf audio/ac3 AC3 audio ac3 audio/x-ac3 AC3 audio ac3 video/x-mpeg MPEG media mpeg,mpg,m1s,m1v,m1a,m75,m15,mp2,mpm,mpv,mpa QuickTime Plug-in 7.7.1

   File: npqtplugin2.dll
   Version: 7.7.1.0
   The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.

MIME Type Description Suffixes audio/aiff AIFF audio aiff,aif,aifc,cdda audio/x-aiff AIFF audio aiff,aif,aifc,cdda audio/basic uLaw/AU audio au,snd,ulw audio/mid MIDI mid,midi,smf,kar audio/x-midi MIDI mid,midi,smf,kar audio/midi MIDI mid,midi,smf,kar audio/vnd.qcelp QUALCOMM PureVoice audio qcp QuickTime Plug-in 7.7.1

   File: npqtplugin.dll
   Version: 7.7.1.0
   The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.

MIME Type Description Suffixes application/sdp SDP stream descriptor sdp application/x-sdp SDP stream descriptor sdp application/x-rtsp RTSP stream descriptor rtsp,rts video/quicktime QuickTime Movie mov,qt,mqv video/flc AutoDesk Animator flc,fli,cel audio/x-wav WAVE audio wav,bwf audio/wav WAVE audio wav,bwf Novell iPrint Scriptable Plug-in 1.0

   File: npnisp.dll
   Version: 5.7.4.0
   Novell iPrint Scriptable Plug-in provides functions for the iPrint Map Designer

MIME Type Description Suffixes application/iprint-plugin npnisp nvl Novell iPrint Plug-in

   File: npnipp.dll
   Version: 5.7.4.0
   iPrint Plug-in 1.0.0 - Provides iPrint client services for Windows

MIME Type Description Suffixes application/x-novell-ipp Novell iPrint printer access nvl Microsoft® Windows Media Player Firefox Plugin

   File: np-mswmp.dll
   Version: 1.0.0.8
   np-mswmp

MIME Type Description Suffixes application/x-ms-wmp np-mswmp * application/asx * video/x-ms-asf-plugin * application/x-mplayer2 * video/x-ms-asf asf,asx,* video/x-ms-wm wm,* audio/x-ms-wma wma,* audio/x-ms-wax wax,* video/x-ms-wmv wmv,* video/x-ms-wvx wvx,* doubletwist Plugin 1, 3, 0, 0

   File: NPPodcast.dll
   Version: 1.3.0.0
   1.3

MIME Type Description Suffixes application/x-vnd-doubleTwist doubletwist Podcast Support Plugin

So no matter how many times I install the 32 bit flash player, Firefox never sees it.