Reddit webapp locks up firefox, consumes tons of CPU.

[Robert Bruce Park]

Steps to reproduce:

1. make sure you have webapps components enabled (best to try this in a fresh VM)

2. open firefox

3. browse to reddit.com

4. choose to enable integration when prompted

5. notice that CPU usage spikes permanently and firefox becomes unusable / crashes.

[Justin McPherson (justinmcp)]

With a new install of trusty-386 and updates applied, I can't reproduce this. There are two reddit icons, but I that's a different problem.

[Robert Bruce Park (robru)]

Are you using firefox or chrome?

This bug was so bad for such a long time that I had to disable webapps on my computer. I'll poke around a bit to see if I can reproduce it again.

[Justin McPherson (justinmcp)]

It was a brand new install, trust daily from the 28th January. No chromium
installed, firefox for browsing to reddit and firefox launched from the
created launcher icon.

[Robert Bruce Park (robru)]

That's another issue actually -- why is it launching in firefox? shouldn't it be launching in the container?

[Justin McPherson (justinmcp)]

The extension package that came with the daily is
2.4.8+13.10.20130920-0ubuntu1. The extension that only handles installs is
3.0.0. The package hasn't landed yet for some reason?

[Robert Bruce Park (robru)]

Where are you seeing 3.0.0? I don't see that in the debian/changelog
in lp:unity-firefox-extension trunk.

On Tue, Jan 28, 2014 at 8:47 PM, Justin McPherson
<email address hidden> wrote:
> The extension package that came with the daily is
> 2.4.8+13.10.20130920-0ubuntu1. The extension that only handles installs is
> 3.0.0. The package hasn't landed yet for some reason?
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1273396
>
> Title:
> Reddit webapp locks up firefox, consumes tons of CPU.
>
> Status in “unity-webapps-reddit” package in Ubuntu:
> New
>
> Bug description:
> Steps to reproduce:
>
> 1. make sure you have webapps components enabled (best to try this in
> a fresh VM)
>
> 2. open firefox
>
> 3. browse to reddit.com
>
> 4. choose to enable integration when prompted
>
> 5. notice that CPU usage spikes permanently and firefox becomes
> unusable / crashes.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/unity-webapps-reddit/+bug/1273396/+subscriptions

[Tommy Maffia (szerated)]

I tried to reproduce this. The CPU usage while on reddit was high, but while I browsed around to other sites (some of which had unity integration) the cpu remained the same.

[Michael Swierczek (mike-swierczek)]

I don't know if this is related, but in 15.04 beta I got hangs and lockups on Firefox 37.0 until I turned off the "use hardware acceleration when available" feature under Menu -> Preferences -> Advanced -> General tab and then restarted the browser. I have an AMD Radeon HD 5770 video card and the fglrx (proprietary) graphics driver. With the "use hardware acceleration when available" on, Firefox was using 100% of one core almost every time I changed web page. With it off, it jumps to 80% for a few seconds and then returns to normal.