Adobe Flash lags every five sec. or so (just recently)

Lately, when I’ve watched any Flash video, it’s lagged every five seconds or so. It hasn’t always done this, just recently. The thing is, I have no idea what I might have done to cause this change. Any ideas? I tried uninstalling and reinstalling Flash from the repos, but to no avail.

Giving this another go.

I use Flash all the time for the bbc here in the UK. And I must confess I had suspected Flash as causing a reboot issue on my Box, but by process of elimination I nailed it down to an old HD.

Flash is certainly not perfect, even in windows there are issues for users when choosing High Quality from the view option and even the Full Screen view has been an issue.

I will not even pretend to suggest I have any answers for you. But as it is, Flash works reasonably well for me. Though for the life of me, I can’t understand why something so fundamental as this remains behind closed doors.

I know it’s not a hardware deficiency, as I haven’t had any problem with Flash until recently. I’m hoping I won’t have to bring out my Eee every time I want to watch pretty much any online video properly…

Oh, it’s a Firefox problem. Flash works fine in Konqueror. Now how to fix Firefox…

Try a rename of the hidden .mozilla folder, so it starts a new one. Don’t add any extensions and see how it works.

You can always go back to your old mozilla folder - once you have tested.

Yep, must be something wrong with this profile(?). The problem went away with the new .mozilla folder. So would this be most likely due to an extension, or something else?

So would this be most likely due to an extension

I think so.
Process of elimination. But there is always the possibility that even when you have added them all back, it will be OK. So it could just be down to some settings somewhere.

Well, I’ve figured out that it’s not Flash that’s lagging, but the whole of Firefox. Wish I had noticed this earlier, or at least had the ability to edit posts older than a few minutes.

With FF running - open a terminal and do:

top

see what it reckons FF is using

I never have issue with FF, though it’s not all that uncommon to have reports here in the forum.

9925 chris     20   0  401m 151m  28m R   52  7.5  43:28.16 firefox

Watching it in System Activity, CPU usage varied between around 8 and 45%. (I have 10 tabs open, but I’ve had twice this many tabs open before with no problem.)

EDIT: Disabling all extensions solved the problem, so I’ll re-enable 'em one by one to see where the problem lies.

Well, I disabled all extensions (at which point the problem went away), and then re-enabled them two at a time and restarted… Once all my extensions were re-enabled, the problem still hadn’t come back…

So, I guess the problem has been solved…

Somehow.