View Full Version : Want to delete firefox unused plugins.

14-08-2015, 07:01 PM
There doesnt seem to be an option
to delete unused plugins in firefox.

My FF version: 40.0.2
as of


Terry Porritt
15-08-2015, 08:48 AM
Delete the programs that put them there.

15-08-2015, 10:12 AM
It's either here:


Or you can type about:addons into the address bar.

15-08-2015, 02:41 PM

ff addons and ff plugins are different stuff.
we get more confused when ff chooses to call them extensions instead of
as "addons."

An extension means a filename extension. It is
part of Microsoft Windows.

I typed "about:plugins"
in ff address bar.

Lets glance through the Status: field and the FilePath: field.

It seems there isnt presently a way to delete plugins
through this interface.

I am not sure if we can try deleting each pluginfile
referred to, one by one manually.

Terry Porritt
15-08-2015, 05:22 PM
AFAIK, the only way to delete unused plugins, is to delete/uninstall the parent program. Presumably if the plugin is not used, then the program is not used, so delete it.

For example if you decided you didn't want to use VLC player any more and you uninstalled it, the VLC plugin would also be uninstalled

16-08-2015, 01:14 PM

Hello Terry, thanks for choosing to reply.
Most of the time it is not clear what was the program that installed a particular plugin in ff.
I may not want to delete the program, just delete the plugin alone.
Why? The plugin could be slowing down my browsing experience.

Example these:
I have Foxit Reader Plugin, Spoon plugin, Silverlight plugin.
These contain the word "Plugin" in them.

Spoon is a plugin, not a installable application.
Silverlight too.

There are some "Microsoft Office" plugins
I already checked out their mime-type is handled correctly in "about:preferences#applications"
I dont want to delete the Microsoft Office installation.
But I still want to delete the Microsoft Office "plugins"

una buena (Spanisch)

L.Mohan Arun
Google my name if my blog is any useful :*

Terry Porritt
16-08-2015, 01:49 PM
It is difficult, each case needs to be examined separately and a method found to remove the plugin.

In the case of Foxit Reader, go to the plugin folder at Program Files\Foxit Software\Foxit Reader\plugins and delete (or rename) npFoxitReaderPlugin.dll

This will remove the plugin. It is not needed because Firefox has inbuilt facility to read pdf files.

Terry Porritt
16-08-2015, 02:00 PM
Just adding, if you open the add ons - plugins window in Firefox, and click on the "more" option for the plugin, it will show the dll file belonging to the plugin.
Deleting or renaming the dlls will remove the plugin as the example above, all you have to do is find the dll files.

16-08-2015, 02:24 PM
Thank you Terry my friend !

Firefox Plugins screenshot (http://www.mohanarun.com/wp-content/uploads/ffplugins.jpg)

Screenshot #2 (http://www.mohanarun.com/wp-content/uploads/ffplugins2.jpg)

Speedy Gonzales
16-08-2015, 04:12 PM
If ccleaner is installed go to tools / startup / browser. You can delete / disable plugins there

Terry Porritt
16-08-2015, 04:27 PM
If ccleaner is installed go to tools / startup / browser. You can delete / disable plugins there

Good one :thumbs: Never realized that option was there ! I sort of groped my way to deleting the dlls :)

Speedy Gonzales
16-08-2015, 05:31 PM
Yup its a good thing to have. Esp if something decides to add itself to one. Without you knowing. And if the browser crashes

The context one which is there too. Is good if explorer.exe / this pc / or whatever it's called crashes.

Sometimes codecs / or faulty ones can cause this to crash. Thats where they add the entry