firefox has a blocklist feature that allows for deactivation (not uninstalling!) of addons and plugins which cause crashes or security issues. however, this feature was as of yet not used to disable any old legit versions of adobe flash that might cause problems - for a full list of affected addons see https://addons.mozilla.org/en-US/fire.../blocked/ (note that the flash addons listed there are all malware disguised as flash player to trick users, but no versions from adobe).

therefore it's likely that something else (maybe security software on your pc or an update from adobe itself) has caused the behaviour that you have observed.

I downloaded the old version pack from adobe through a link on their forum posted by an adobe tech (i did that before but deleted the archive since it was working fine), it worked fine untill today. Now firefox has disabled it and the plugincheck page says "Firefox has disabled your outdated version of Flash" I'm sure it has nothing to do with any other software. If it did FF would have been looking fine and it would just have not worked... Besides, nothing changed on my machine, i tried going from FF11.0 to 12.0 and reinstalled flashplayer11_1r102_63_winax_32bit.exe but FF just disables it and doesn't show it in the plug in list so i can't enable it back even if i wanted to.

Edit: file download location:http://fpdownload.macromedia.com/get/flashplayer/installers/archive/fp_11.1.102.63_archive.zip adobe forum post: http://forums.adobe.com/message/4325258

you'll have to install the flashplayer11_1r102_63_win_32bit.exe file from the link you've posted - the ax version is for IE only (ActiveX).

it works for me on firefox 12, nothing is blocklisted or disabled here, the plugin shows up in addon manager as Shockwave Flash 11.1.102.63. when i perform a plugin scan, flash is shown as outdated but no further action is taken. the "flash has been disabled" message on mozilla's plugin check page was probably just incorrect since it is shown per default in certain situations (see bug 633285).

if you're still haveing troubles i'd recommend that you delete the file named blocklist.xml inside your firefox profile folder and disable the getplusplusadobe16263 plugin.

Insane! I used the wrong installer..., omg... That's what happens when you stop thinking and just do as someone says like: "Internet Explorer for all Windows 32-bit systems: flashplayer11_1r102_63_win_32bit.exe Other browsers for all Windows 32-bit systems: flashplayer11_1r102_63_winax_32bit.exe"

Still weird why it stopped working all of a sudden though. But it works again now i installed the right version, doh and thanks. :)