So you’re trying to watch an old Star Trek episode on the CBS Classic TV Shows site using Firefox (2 or 3) but much to your dismay you find that the video is choppy and dropping frames, ruining your plan to go where no man has gone before. You also might realize that suddenly your faithful old single core processor that’s kept it’s cool through everything you two have been through has suddenly come down with a bad case of heat stroke. Well, if you had checked your task manager (in Windows that is) you would have seen that Firefox.exe was running your CPU at 99% while playing the video which would explain why all your PC’s fans now sound like the engines of a WWII B29 Super Fortress running at full bore. Bloody Firefox, you say? Internet Explorer 7.0/8.0 plays the video just fine?
Don’t blame the browser.
Firefox doesn’t stream videos…the Shockwave Flash plugin does and that particular plugin for Firefox made by Adobe has a problem. For those of you who don’t know, Adobe makes 2 different Shockwave Flash plugins. One for IE and one for Firefox which is also the same plugin that Opera uses and if the streaming video you’re trying to view in Firefox is causing all sorts of problems attempting to view the same video using Opera will produce the same results.
What the exact problem within the Flash plugin for Firefox actually is I can’t tell you, I’m not a programmer. But the bottom line is that it has to be fixed. It’s simply not good enough anymore to simply shrug our shoulders and say well, it’s been like that for 3-4 years now so why bother? Here’s a good reason posted by one member of the Mozillazine Forums in response to someone else’s question; “Why bother?”:
Because Adobe’s grand long-term strategy is for Flash to become a legitimate platform (I, for one, hope that this strategy crashes and burns, but that’s another issue) and severe performance issues like this aren’t very conducive to that goal? And also because there have been a few instances in the past when they did care (for example, this one).
Here’s another reason:
Firefox 3 has basically been rebuilt from the ground up and the results of that overhaul are obvious and plentiful. Firefox 3 is a real honey of a browser. It’s light, fast, easy on the memory (finally) and full of new features and functions. The point I’m trying to make here is that if a heavily used plugin like the Flash plugin is providing terribly poor performance in Firefox 3, that plugin is going to stand out like it never did in Firefox 2. It’s like rebuilding a vintage Chevy V8 from the ground up and installing the old leaky fuel pump on it. So what’s the solution?
Feedback, feedback, feedback! I can’t stress that enough. Test it yourself. Those with dual core processors might have a smooth playback but will show around 70% CPU usage (IE delivers the same video at approximately 14%). Here’s what you do (Windows users only. Sorry, don’t have a Mac or a Linux box at present):
- Using Firefox, head to this website and load up any single episode of any of the old classic TV shows (I like the old Star Trek personally). Don’t play the video yet.
- Bring up your Task Manager and monitor Firefox.exe (just highlight it so you can see it easily).
- Now start the video.
- Check your Task Manager for CPU usage for Firefox.exe and note the results. (Single core PC’s might become somewhat unresponsive. Just pause or stop the playback to solve the problem).
What you should see is CPU usage peaking at approximately 99% for a fairly recent, single core processor and around 70% for dual core processors. Video playback in PC’s with a single core processor should be choppy and erratic plus Windows may become a bit unresponsive. Dual core PC’s should see smooth playback but a heavy load on the processor (around 70%). Once you’ve seen the results for yourselves, now comes the feedback.
Navigate yourself to the support department at Adobe, Shockwave Flash division and fill out this feedback form on what you saw. Make sure you select Firefox and Flash or Shockwave from the drop down menus provided in the form (the plugin is actually called Shockwave Flash but since that isn’t a selection…). Be brief but concise in your description of the steps of your testing and the results you saw and above all–be professional! If you wish to see this problem fixed then don’t get loose on your feedback. I guarantee they won’t bother with it.
Caution: Submit only one feedback please and if you don’t do the test, don’t submit any feedback meaning; don’t just take my word for it. We’re not trying to flood Adobe with this, just get their hopefully positive attention. They’re (Adobe) probably going to yell at me for this anyway so please don’t make it worse. 
Those of you with blogs can of course post about this if you wish.
That’s it. And just so everyone understands, this post is an effort to get something that needs to be fixed, fixed. It’s not an attack on the good folks at Adobe in any way shape or form. The bottom line here is that Firefox 3 is our browser. User feedback has driven a very large portion of it’s development so far (yes…it has) and even though Mozilla can’t help the performance of Adobe’s plugin, we, the users, can. If you want something fixed…make some (reasonably productive) noise about it.
Krasimir,
oh…um…yeah. How could I have possibly missed Linux. Only one possible explanation…I goofed.
I shall correct accordingly. Thanks for catching it!
Been having problems with Flash playback in Firefox for well over a year now, maybe two years. Tried many different things to address it but no luck. In my case, Flash either eats up 60%+ CPU (if I’m lucky) or, more often, the video stops after 2-5 seconds. Very, very annoying. Thanks for this post.
I’m running XP Media Center SP2, AMD 64 X2 Dual-Core 6400
The era of Firefox is over. Firefox 3 is going to be exactly what Communicator was for Netscape…the death knell. I’m done w/ it, if I can’t watch embedded vids and have to copy urls into IE, and virtually every website uses flash video…what’s the point of staying w/ Firefox? There is no point. Move your bookmarks and move on w/ your life and cherish the memories of browsers past. Goodbye Mozilla.
5-14% cpu usage. Firefox 3, flash 10.
No problems here. High end system tho.. But on my other low end system it also works fine.
Yes it does perform better in IE, but even hd videos rarely bring it over 40%. Only flash stuff to max it out are games, which is expected.
before flash 10, the cpu did all the work, but with flash 10 adobe started using the gpu power