User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:126.96.36.199) Gecko/20101203 Namoroka/3.6.13pre Firefox.3.6 ( .NET CLR 3.5.30729; .NET4.0E) Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:188.8.131.52) Gecko/20101203 Namoroka/3.6.13pre Firefox.3.6 ( .NET CLR 3.5.30729; .NET4.0E) I used to have QuickTime 7.6.5 (with npqtplugin9.dll) but I upgraded to QuickTime 7.6.9 (with npqtplugin.dll). QuickTime 7.6.9 does not un-install the prior version so BOTH are visible in the [Menu][Add-ons][Plugins] Page. When you click the [Find Updates] Button it opens a Tab to URL: https://www.mozilla.com/en-US/plugincheck/ and that shows BOTH versions are installed and BOTH are "out of date". If you hit the [Disable] Button on the [Menu][Add-ons][Plugins] Page for "QuickTime 7.6.5" and then re-load the PiC Page (https://www.mozilla.com/en-US/plugincheck/) it says that "QuickTime 7.6.9" is _NOW_ "Up to date"; though you made no change to IT (only to disable an earlier version). Thanks, Rob Reproducible: Always
Related (wth "Java focus"): Bug 596392
This problem occurred again. I think it happened after installing Nightly though it is possible it happened after running an Update of one of the three version of FF that I have running. There is nothing that alerts you to this other than going to URL https://www.mozilla.com/en-US/plugincheck/ or looking at about:addons [Plugins]. Perhaps the Installer is checking for all versions of Quicktime that have been installed previously and simply adding each to the "Plugins" List.
(In reply to Rob from comment #2) > This problem occurred again. > ... > Perhaps the Installer is checking for all versions of Quicktime that have > been installed previously and simply adding each to the "Plugins" List. Confirmed. The Firefox Installer finds all prior versions and installs ALL the Plugins. It may be the Quicktime Installer's fault for not properly cleaning up all it's own Files after doing an update but we don't need to install all the old versions of the Plugin that we can find, only the most recent one. It is OUR installation of all available versions of the Plugin and the subsequent check on the PiC Page that results in the PiC Page telling us that all our Quicktime Plugins are out of date (which is not true for the most recent one).
Related: Bug 596392
This seems fixed.