Howto: View Firefox Installed Plugins (Addons) List

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How do I view Mozilla Firefox installed plugins add-ons list under Windows / Linux and Mac OS X operating systems?

You can easily view all installed plugins simply clicking on the Tools menu > Addons > Extension tab:

Fig.01: Firefox Add-ons
Fig.01: Firefox Add-ons

about:plugins shortcut

Type the following command into the address bar (URL bar) and press [Enter] key:
about:plugins
You will get the list of all installed plugins as follows

Fig:02: Firefox Installed plugins
Fig:02: Firefox Installed plugins

about:cache

To see memory and disk cache including details for all website, type the following command into the address bar and press [Enter] key:
about:cache

Fig.03: Firefox Memory / Disk Cache Information
Fig.03: Firefox Memory / Disk Cache Information

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