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Old 12-16-2014, 12:29 AM   #1
LQ Newbie
Registered: Oct 2014
Location: Canada
Distribution: Slackware 14.1
Posts: 13

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If latest Flash plugin(.425) isn't working in Firefox, this is the solution.

Even though I had the latest Flash plugin installed, Firefox still reported it as deactivated.
Simple solution, not always obvious.

Delete your local cache folder '.mozilla' (rm -rf ~/.mozilla)

BUT make sure to at least backup your bookmarks first.
(Show All Bookmarks->Import and Backup->Export Bookmarks to HTML)
You will also have to redownload Add-ons like Adblock, but that takes a minute.

As a general rule, it's a good idea to delete this folder whenever you update Firefox or in weird cases like this.
Old 12-16-2014, 02:57 AM   #2
LQ 5k Club
Registered: Jan 2006
Location: Oldham, Lancs, England
Distribution: Slackware64 15; SlackwareARM-current (aarch64); Debian 12
Posts: 8,302
Blog Entries: 61

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Never had any problems here, using the package from Alien Bob:
Old 12-18-2014, 06:54 AM   #3
LQ Newbie
Registered: Dec 2014
Location: Indiana
Distribution: Arch & RHEL
Posts: 1

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Deleting the entire ~/.mozilla directory is a bit harsh.

The following was less intrusive for me (after updating the flashplugin package - in my case via Arch yaourt):
rm ~/.mozilla/firefox/*.default/pluginreg.dat
<then restart firefox>

All was well and Firefox was recognizing the updated version of flash....
No reinstall of addons and such necessary either.

Last edited by stevelipinski; 12-18-2014 at 06:57 AM.
1 members found this post helpful.
Old 12-20-2014, 01:18 AM   #4
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Registered: Oct 2014
Location: Canada
Distribution: Slackware 14.1
Posts: 13

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Indeed, I'll make sure to remember that.


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