Author Topic: Firefox plugins stop working  (Read 6283 times)

Neil Waldhauer

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Firefox plugins stop working
« on: May 09, 2015, 03:25:29 pm »
I'm using Nightly (Firefox 24 compiled by Dave Yeo). I used it for a while, then my plugins disappeared. Even though all the files are still there in the plugin directory, Firefox no longer uses them.

I created a new profile, and the plugins are back. So I used that profile for a while (moving all my bookmarks and passwords to the new profile), but in a few days, my plugins are gone again. I made yet another profile, and they are back.

Any idea what is going on? Is there a way to restore plugin capability to a profile?
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Pete

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Re: Firefox plugins stop working
« Reply #1 on: May 09, 2015, 05:06:48 pm »
Hi Neil

Does Firefox have an Addons/Plugins Manager?  -  check that plugins are recognised and Enabled in the Profiles with the non-working plugins.

Silly question: What plugins do you have installed?

I ask because there do not seem to be many required; I only have mplayer and flash - I'll probably add IcedTea if/when it gets to GA. If you have old mmos2 plugins installed (Netscape Multimedia Pack?) I wonder if they could be causing problems.


Regards

Pete


Neil Waldhauer

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Re: Firefox plugins stop working
« Reply #2 on: May 09, 2015, 06:27:02 pm »
Sure it does. No plugins are recognized.

I have Flash 11 installed.
1. create new profile
2. flash 11 works. Plug in is recognized and I can switch it on and off.
3. surf around a while
4. flash doesn't work. No plugins are recognized
5. restart Firefox/system. No change.

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Dave Yeo

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Re: Firefox plugins stop working
« Reply #3 on: May 09, 2015, 06:57:09 pm »
Look at pluginreg.dat in your profile, Flash is probably getting moved to the invalid part. IIRC you can just move pluginreg.dat out of the way (with FF closed) to fix.
If I'm remembering correctly, FF downloads a list of insecure plugins and will disable old Flash, there's a preference which I can't remember to disable the behaviour, Google might help.

Neil Waldhauer

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Re: Firefox plugins stop working
« Reply #4 on: May 09, 2015, 09:01:54 pm »
Removing pluginreg.dat brings back the Flash plugin. Thanks!
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