Recently on one of my OEM desktop machines I've had a very frustrating issue where Firefox no longer recognises the plugins I have installed. The plugins I have installed are Java 7 update 9, Adobe Flash 11.5.31.2 among many less important plugins. I also had the most up-to-date versions of these other plugins, though I usually keep them disabled and only Flash and Java enabled.
I've tried everything to get the plugins back. I tried uninstalling Flash and Java completely, then reinstalling. Then I tried completely uninstalling then reinstalling Firefox (even getting rid of my personal Firefox preferences). After this reinstall of Firefox all my plugins seemed to be visible again :). I noticed a very old version of flash was in the list (version 9), so I went to its path and deleted it manually since there was no Flash 9 uninstaller. Version 9 disappeared from the list, as expected, then I continued on. I decided to reinstall some of my extensions (Adblock Plus, Disable Clipboard Manipulations, Suspend Background Tabs, and Fasterfox Lite). I had to restart Firefox for one extension, Fasterfox, and after the restart I was left with a near-empty plugin list again... (only QuickTime showed up) :mad:
As a side note, I also had trouble with the default 975KB-sized Flash installer; it wouldn't run at all. I downloaded an alternative 15MB-sized installer, which seemed to run normally.
System info:
OS: Windows 7 Home Premium x64 SP1
Antimalware: Microsoft secuirty Essentials, enabled and up-to-date definitions
Motherboard: MSI 2A9C
CPU: Intel core i7 870 @ 2.93 GHz
RAM: 6GB DDR3 @ 1333 MHz
HDD: 1.5TB Seagate, 7200 RPM
GPU: AMD Radeon HD 5570, 2GB DDR3
All installed plugins show up and work fine in Google Chrome just so you know.
I've tried everything to get the plugins back. I tried uninstalling Flash and Java completely, then reinstalling. Then I tried completely uninstalling then reinstalling Firefox (even getting rid of my personal Firefox preferences). After this reinstall of Firefox all my plugins seemed to be visible again :). I noticed a very old version of flash was in the list (version 9), so I went to its path and deleted it manually since there was no Flash 9 uninstaller. Version 9 disappeared from the list, as expected, then I continued on. I decided to reinstall some of my extensions (Adblock Plus, Disable Clipboard Manipulations, Suspend Background Tabs, and Fasterfox Lite). I had to restart Firefox for one extension, Fasterfox, and after the restart I was left with a near-empty plugin list again... (only QuickTime showed up) :mad:
As a side note, I also had trouble with the default 975KB-sized Flash installer; it wouldn't run at all. I downloaded an alternative 15MB-sized installer, which seemed to run normally.
System info:
OS: Windows 7 Home Premium x64 SP1
Antimalware: Microsoft secuirty Essentials, enabled and up-to-date definitions
Motherboard: MSI 2A9C
CPU: Intel core i7 870 @ 2.93 GHz
RAM: 6GB DDR3 @ 1333 MHz
HDD: 1.5TB Seagate, 7200 RPM
GPU: AMD Radeon HD 5570, 2GB DDR3
All installed plugins show up and work fine in Google Chrome just so you know.