Stefan, thank you. I did not think to restart the browser when I tried to
toggle that setting. This is a great improvement!
Too bad they are deprecating this feature. The video you shared in the link
demonstrates exactly my experience. I hope the FF team decides to continue
supporting this legacy mode.
Thanks again for sharing this.

Jordan

On Mon, Aug 29, 2016 at 9:36 AM, Stefan Seidel <ssei...@vub.de> wrote:

> It's still there in the 51.0.a1 nightly build.
>
>
>
> There's a conversation on reddit about it (started by me) and also a bug
> report:
>
>
>
> https://www.reddit.com/r/firefox/comments/4nfmvp/ff_47_
> unbearable_slow_over_remote_x11/
>
> https://bugzilla.mozilla.org/show_bug.cgi?id=1263222
>
>
>
> Stefan Seidel
>
>
>
> -------------------------------------
>
> On Sunday 28 August 2016 23:25:50 Stefan Seidel wrote:
>
> > The variables gone by 50.Â~
>
> >
>
> > -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_
> -_-_-_-_-_-_-_-_
>
> > -_- Eskimo North Linux Friendly Internet Access, Shell Accounts, and
>
> > Hosting. Knowledgeable human assistance, not telephone trees or script
>
> > readers. See our web site: http://www.eskimo.com/ (206) 812-0051 or
> (800)
>
> > 246-6874.
>
> > On Mon, 29 Aug 2016, Stefan Seidel wrote:
>
> > > Date: Mon, 29 Aug 2016 08:11:53 +0200
>
> > > From: Stefan Seidel <ssei...@vub.de>
>
> > > To: Jordan Sokolic <jor...@twiggle.com>
>
> > > Cc: x2go-user@lists.x2go.org
>
> > > Subject: Re: [X2Go-User] Web browser performance over X2Go
>
> > >
>
> > > Hi Jordan,
>
> > >
>
> > > Firefox 47 disabled XRender support by default. Go to about:settings
> and
>
> > > search for xrender, set the property to true. That made it a lot better
>
> > > for
>
> > > me.
>
> > >
>
> > > Stefan
>
> > >
>
> > >> Date: Sat, 27 Aug 2016 12:34:32 +0300
>
> > >> From: Jordan Sokolic <jor...@twiggle.com>
>
> > >> To: x2go-user@lists.x2go.org
>
> > >> Subject: [X2Go-User] Web browser performance over X2Go
>
> > >>
>
> > >> Message-ID:
>
> > >> <CAFbFDtijPrfER_DEu+zM11N08FKb_Zn-WdUEkR99AQN1zZ9o=q...@mail.gmail.com>
>
> > >>
>
> > >> Content-Type: text/plain; charset="utf-8"
>
> > >>
>
> > >> Hello,
>
> > >> I use a web frontend for work that runs locally on my server over X2Go
>
> > >> for
>
> > >> about one year with success.
>
> > >> Some months ago I noticed a significant decrease in performance when
>
> > >> using
>
> > >> Firefox. My server is running Ubuntu 16.04 with MATE desktop, Windows
> 10
>
> > >> client. Up to Firefox version 39.0.3 performance of loading pages,
>
> > >> scrolling, browsing etc. was nearly flawless over a 5Mbit WAN link
> (with
>
> > >> the exception of embedded video elements). However it seems the
> release
>
> > >> of
>
> > >> Firefox version 40.0 introduced some changes in rendering (see
>
> > >> https://www.mozilla.org/en-US/firefox/40.0/releasenotes/) that do not
>
> > >> play
>
> > >> nice with X2Go. Further reduction in performance was noticed in
> versions
>
> > >> 46.0 and 48.0. The current release (48.0) even has trouble rendering a
>
> > >> plain text document without lag and choppiness.
>
> > >> I have tried toggling various flags relating to graphics, compositing,
>
> > >> rendering, etc. to no avail.
>
> > >> To work around this problem the only solution I have found is to
> forward
>
> > >> ports over a separate SSH tunnel and browse locally, but this is
>
> > >> cumbersome
>
> > >> to set up every time I need to connect.
>
> > >> I have preferred Firefox to Chrome over X2Go because the latter has
>
> > >> always
>
> > >> been unusably slow; now they are both similarly choppy and slow.
>
> > >> Has anyone else noticed this?
>
> > >> Any advice or help would be appreciated.
>
> > >>
>
> > >> Regards
>
> > >>
>
> > >> Jordan
>
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