Gnash is useless it has never worked for me and I am surprised it is available in the repositories at all.
For Linux Flash is stuck at version 11.2 and will never get any higher but it is version 15.x or 16.x in other systems.
In Linux Iceweasel/Firefox now complains about Flash in various sites and even gives a warning in some instances that it may cause degraded browsing performance. Web devs should just move to HTML5 anyway anddump a feature that should have died with the dinosaurs.
If you must use Flash you are much better off using Chromium and adding the pepperflash-nonfree plugin or you could just use straight Chrome if you are OK with Google watching your every move (says Michael while he is posting this from his gmail address :)  )

On 6 March 2015 at 14:12, Greg Madden <gomadtroll@gci.net> wrote:


On Thursday 05 March 2015 04:48:16 pm Steven D'Aprano wrote:
> On Thu, Mar 05, 2015 at 10:01:57AM -0700, Jonesy wrote:
> > On Thu, 5 Mar 2015, Dan Youngquist wrote:
> > >On 03/05/2015 07:27 AM, Lisi Reisz wrote:
> > >> On Thursday 05 March 2015 10:04:28 Baron wrote:
> > >>> Having closed Iceweasel, it still seems to be running
> > >>
> > >> I have had this problem on and off in various versions over the years.
> > >> I do:
> > >> # ps ax | grep iceweasel
> > >> # <response>
> > >> # kill xxxx
> > >
> > >Faster/easier:
> > >
> > >killall -9 iceweasel
> >
> > And, you should not need to run as root.
>
> You shouldn't need to run as root at all. You just need to run as the
> same user who ran Iceweasel in the first place. That's likely to be you.
>
>
> Oh, and killing Iceweasel/Firefox is probably overkill. If it actually
> is Flash causing the problem, you can just kill the Flash plugin.
>
> ps aux | grep nspluginviewer
>
> if you are using Adobe's Flash plugin. If you are using the third-part
> FOSS "gnash" plugin, I think this will work:
>
> ps aux | grep gnash
>
> Once you have the process ID, just kill it as normal:
>
> kill <id>
>
> (Use kill -HUP and kill -9 if necessary).


Re a couple of posts.

If you use the cli to halt a process, use top. top accepts the 'k'  or kill
command..it uses kill -15....not -9, works here.

I use Iceweasel & Firefox,  it hardly ever has any  issues. I do not
use 'gnash' to problematic, I use flash from Adobe, Debian's
package..'flashplugin-nonfree'. The most recent versions of Firefox sandbox
Flash well, this has reduced issues with flash , ymmv.

I run Iceweasel, Firefox at the same time..different users, a couple of vbox
instances..one of which runs Firefox & flash.. trouble free.
--
Peace,

Greg

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