I just set gfx.webrender.enabled to True and it seems a bit more stable now but it sure eats the memory.
I am running Firefox Nightly 56.0a1 (2017-07-21) (64-bit) under Windows 7 Home Premium SP1 (64-bit). I use dom.ipc.processCount=10. These extensions are installed and enabled:
- Gecko Profiler (never got around to uninstalling it after having reported a performance bug some time ago)
- Hostname in Title
- SixOrNot (LEGACY)
- Tab Center Redux
- uBlock Origin/webext (labeled LEGACY in add-ons -> extensions)
- Have you tested WebRender? (yes, this page you are currently viewing)
- Titan TV
- Netflix DVD queue (6 at home, 474 queued, 105 saved, this is the one that took about a minute when I reported a performance issue, now takes 35 to 40 seconds to load and it’s now just a bit longer)
- Netflix DVD member home
- Netflix “My List” (59 titles)
(Other than the first tab, this is the type of setup I use for looking through the listings to see what movies are coming up in the next few days on cable and seeing if I can get better versions, e.g., Blu-ray, or at least without commercials, and the prediction of how I would like it before deciding to add the title to one of my Netflix queues or going ahead and schedule the DVR to record that movie. I have the URLs in one Bookmarks folder and I just do Right+Click, “open all in tabs” when I am preparing my DVR schedule. Hey, I’m retired, and this hobby isn’t as bad as some. )
Memory usage for having gfx.webrender.enabled true and false are:
False: Firefox consumes 1.13 GB of memory.
True: Firefox consumes 3.13 GB of memory.
Oh, and as I have been working on this message and also scrolling through my DVD queue (meaning: it’s pulling in thumbnails of cover arts for those titles), Firefox (gfx.webrender.enabled=true) has grown to now consuming 4.48GB.
I hope there will be some memory tuning before it is released because this is starting to edge too high for my 8GB machine.
Edited to add:
I see there are already outstanding bugs for memory usage for WebRender, e.g.,