What is your video card?PhilGil wrote:I tried it and that doesn't seem to be my problem, although it may help other posters whose problems seem to be media-related. Mine is just general sluggishness. On a positive note, I did try the release version of Firefox (v54.x) and it seems to be a bit perkier, although RAM use is even worse.maximus1978 wrote:I have disabled webm with the following steps. Getting much better performance and full screen too.PhilGil wrote:I've taken a performance hit since the upgrade to Firefox-ESR 52.x, too. Not specifically with multimedia, but in general v52 feels more sluggish. Plus RAM usage has skyrocketed - with four tabs open the combined firefox-esr and Web Content processes are using almost 1GB of RAM. I suspect the poor performance and high resource use are related to the introduction of multiprocess - I don't think Mozilla had it dialed in yet when version 52 was released. I've been meaning to give the release version a shot to see if performance has improved since.
I don't have an especially low-speced machine. I'm using a desktop PC with an i5 Sandy Bridge processor and 8GB of RAM. I don't have Flash installed in Firefox.
about:config
media.webm.enabled
Set this to false.
Is this the fix?
So far working on 4 of my machines.
HTML5 has issue with .webm format?
Can you post lspci?