Solved Flash plugin not working in Firefox

philippe972 · Jan 24, 2015

Hi,
I cannot get Flash to work in Firefox.
I follow all the instructions of the handbook by installing nspluginwrapper, linux_base-c6, and linux-c6-flashplugin11 and finally run nspluginwrapper -v -a -i but without result.
Any ideas please ?

Juanitou · Jan 24, 2015

You should find errors in the console, post them. What’s the output of sysctl compat.linux.osrelease? Did you run nspluginwrapper as the user executing Firefox (not root)?

philippe972 · Jan 24, 2015

Yes i I run nspluginwrapper -a -v -i.

I have this error when i I run Firefox in the console:

Code:

(process:1059): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed

And the output of sysctl compat.linux.osrelease:

Code:

sysctl: unknown oid 'compat.linux.osrelease': No such file or directory

Juanitou · Jan 25, 2015

The first error is irrelevant, the second one indicates that you have not properly configured the Linux compatibility layer. Double-check what have you done: 11.2. Configuring Linux® Binary Compatibility.

philippe972 · Jan 25, 2015

I followed the instructions 11.2. Configuring Linux® Binary Compatibility and I think the Linux compatibility is configured now.

The output of sysctl compat.linux.osrelease give:

Code:

compat.linux.osrelease: 2.6.18

But I don't see Flash plugin in Firefox.

Juanitou · Jan 25, 2015

What is the output of nspluginwrapper -l?

philippe972 · Jan 26, 2015

Thanks for help.

But sorry but there's no output for nspluginwrapper -l

A problem?

Juanitou · Jan 26, 2015

And the output of pkg info -x linux and kldstat?

philippe972 · Jan 27, 2015

Code:

filip@MS-7816 /usr/home/filip]$ pkg info -x linux
linux-c6-atk-1.30.0
linux-c6-cairo-1.8.8_1
linux-c6-curl-7.19.7_1
linux-c6-cyrus-sasl2-2.1.23_1
linux-c6-expat-2.0.1_1
linux-c6-flashplugin-11.2r202.438
linux-c6-fontconfig-2.8.0_1
linux-c6-gdk-pixbuf2-2.24.1
linux-c6-gtk2-2.24.23_1
linux-c6-jpeg-1.2.1_1
linux-c6-libssh2-1.4.2_1
linux-c6-nas-libs-1.9.1_1
linux-c6-nspr-4.10.6
linux-c6-nss-3.16.1
linux-c6-openldap-2.4.39
linux-c6-openssl-1.0.1e_3
linux-c6-openssl-compat-0.9.8e_1
linux-c6-pango-1.28.1_1
linux-c6-png-1.2.49_1
linux-c6-sqlite-3.6.20_1
linux-c6-tiff-3.9.4_1
linux-c6-xorg-libs-7.4_1
linux_base-c6-6.6_1

Code:

filip@MS-7816 /usr/home/filip]$ kldstat
Id Refs Address  Size  Name
1  8 0xffffffff80200000 1755658  kernel
2  1 0xffffffff81a11000 24e60  vboxguest.ko
3  1 0xffffffff81a36000 43bce  linux.ko

Juanitou · Jan 27, 2015

Well, it all looks OK. If a last try of nspluginwrapper -v -a -i does not resolve it, I won’t know what else to suggest. Post the command output.

retrogamer · Jan 27, 2015

It may just be an issue of Firefox not recognizing the plugin, I have had this happen before. If that is the case, the trick is to delete pluginreg.dat and addons.sqlite. These are located in ~/.mozilla/firefox/, removing them will reset the plugin registry. Also, after doing this it's a good idea to go into the Firefox plugins menu and make sure it's enabled.

philippe972 · Jan 27, 2015

I don't understand. After a new:

Code:

% nspluginwrapper -v -a -i
Auto-install plugins from /usr/local/lib/browser_plugins
Looking for plugins in /usr/local/lib/browser_plugins
Auto-install plugins from /usr/local/lib/browser_plugins/linux-c6-flashplugin
Looking for plugins in /usr/local/lib/browser_plugins/linux-c6-flashplugin
Install plugin /usr/local/lib/browser_plugins/linux-c6-flashplugin/libflashplayer.so
into /home/filip/.mozilla/plugins/npwrapper.libflashplayer.so
Auto-install plugins from /usr/local/lib/browser_plugins/symlinks/linux-firefox
Looking for plugins in /usr/local/lib/browser_plugins/symlinks/linux-firefox
Install plugin /usr/local/lib/browser_plugins/symlinks/linux-firefox/libflashplayer.so
into /home/filip/.mozilla/plugins/npwrapper.libflashplayer.so
Auto-install plugins from /home/filip/.mozilla/plugins
Looking for plugins in /home/filip/.mozilla/plugins

I have the Flash plug-in in Firefox.

But I can't watch YouTube's videos: I have an error occured instead the video.

retrogamer · Jan 27, 2015

philippe972 said:
I don't understand. After a new:

Code:

% nspluginwrapper -v -a -i But I can't watch YouTube's videos: I have an error occured instead the video.

What is the error message? Also, is it only occuring with Youtube? It would be helpful to try it with a comparable website, like https://vimeo.com/ to see if it's just exclusive to Youtube.

philippe972 · Jan 28, 2015

On YouTube, i I have a gray screen video with this message : "an error occured. Please try again later"

Apparently it is only occuring with Youtube, it works fine on vimeo.com

retrogamer · Jan 28, 2015

There is one easy fix, you could just use the HTML5 opt in for Youtube and Flash everywhere else that you need it. Some videos aren't supposed to be able to load this way, but you can circumvent that by using the Youtube All HTML5 add on - https://addons.mozilla.org/en-US/firefox/addon/youtube-all-html5/ or by spoofing the user agent of a mobile device. The only downside is that Google pulled 480p and 1080p HTML5 video unless you are using a browser with MSE DRM support (which Firefox doesn't have yet), meaning you'll only get 240p, 360p and 720p. I'll leave you to guess why they chose to do that.

EDIT: Before doing that, you can always try deleting your cookies as well. I ran into this issue quite a bit, and just went to HTML5 after I became tired of fighting Youtube with Flash.

philippe972 · Jan 28, 2015

After a reboot it seems to work now in YouTube but i I will try your solution
Thanks.