YouTube stuttering with Firefox

[ThomasJL]

When I watch a YouTube video with Firefox -- whether I'm watching it in Flash or HTML 5 -- it often stutters. This stuttering problem never happens when I watch the exact same YouTube videos in Chrome or Safari. Here are seven facts about my situation:

1) I am currently using Firefox 5, but this problem has existed for me in Firefox 4 and Firefox 3.6 to the same extent.

2) I always use the latest version of Flash as soon as it's released, and prior to installing the latest version of Flash, always I use the Flash uninstaller to uninstall the previous version.

3) I have a faster than average cable modem Internet connection. A few minutes ago, Speedtest.net said my download speed is 32 Mbps and my upload speed is 6 Mbps.

4) I am using a dual-core Penryn MacBook 2.13 with 4 GB of Crucial-brand RAM, 500 GB Western Digital hard drive with half of it being empty.

5) The YouTube stuttering problem happens even if Firefox is the one and only application open.

6) I recently did a clean install with an OS 10.6.3 DVD, and used the Combo Update to bring it to 10.6.7. I only use Combo Updates for OS X updates, and use Software Update to install all other available updates.

7) I run Disk Utility's "Repair Disk Permissions" at least once a week.

Please help. Are any of you reading this having or not having this problem? If you have experienced this problem, is possible to fix it?

Thanks for any feedback.

 

[Mr. Happy]

I have always experienced this same problem. My solution was to adopt Chrome as my main browser.

Not sure of the cause though, sorry.

 

[ThomasJL]

Do all Firefox 4 and Firefox 5 users experience this YouTube stuttering issue on their Macs? If not, then in regards to those users who never experience the issue, what exactly is different about those users' Macs that allows them to never experience it?

 

[MisterMe]

I have no issues at all. My YouTube account is setup for HTML5. I also have the most recent version of Flash installed.

 

[Benz63amg]

Do all Firefox 4 and Firefox 5 users experience this YouTube stuttering issue on their Macs? If not, then in regards to those users who never experience the issue, what exactly is different about those users' Macs that allows them to never experience it?

i have a little video tearing every few minutes with firefox 5, it was much worse in firefox 4 but not stuttering

 

[ThomasJL]

I'm now using Firefox 7.0.1 and I still have the same YouTube stuttering problem as described in the OP.

I've heard someone theorize that Firefox does some kind of automatic saving in the background every couple of seconds, so maybe that's why the stuttering problem exists. Do you think that's true, and if so, how do I fix that problem?

 

[ThomasJL]

Well, now I'm using Firefox 8.0, and there is still the stuttering problem when viewing YouTube videos.

Is there anyone here who has had and later fixed this problem? If so, how did you do it?