Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

After 24hrs heavy Firefox 43.0.4 desktop usage on Win Vista 32bit, with only one new, empty tab open, about:memory shows 300MB in canvas-2d-pixels. Bug?

  • No replies
  • 1 has this problem
  • 2 views
more options

The longer I use FF the more memory it demands.

I run very few active add-ons and plugins. Every plugin is "ask to activate" and only Flash is active at the moment.

Add-ons (I only have 4): about:addons-memory Free Memory 2.0 LastPass Restartless Restart (used daily ;-)

Somehow, with only a single tab open that has no content except the about:memory report, about:memory shows 300MB in canvas-2d-pixels. That is approaching one half of the private working set size. It seems excessive.

 294.69 MB ── canvas-2d-pixels
   0.00 MB ── d3d11-shared-textures
   0.00 MB ── d3d9-shared-texture
   0.00 MB ── d3d9-shared-textures
   0.00 MB ── gfx-d2d-vram-draw-target
   0.00 MB ── gfx-d2d-vram-source-surface
  42.15 MB ── gfx-surface-win32
   0.00 MB ── gfx-textures
   0.00 MB ── gfx-tiles-waste
         0 ── ghost-windows
 200.44 MB ── heap-allocated
       532 ── heap-chunks
   1.00 MB ── heap-chunksize
 208.28 MB ── heap-committed
 532.00 MB ── heap-mapped
     3.91% ── heap-overhead-ratio
         0 ── host-object-urls
   1.56 MB ── imagelib-surface-cache-estimated-locked
   3.05 MB ── imagelib-surface-cache-estimated-total
         0 ── imagelib-surface-cache-overflow-count
   4.77 MB ── js-main-runtime-temporary-peak
         0 ── low-commit-space-events
 726.97 MB ── private
 408.57 MB ── resident
   3.79 MB ── system-heap-allocated

1,410.42 MB ── vsize

 120.34 MB ── vsize-max-contiguous

Before I waste more of my time, or any of yours, would you mind closing your tabs (at the end of the day for example) except for a single empty new tab, and letting me know how much memory your Firefox shows under

about:memory canvas-2d-pixels (it's in the very last group of metrics)

I would appreciate it!

Thanks, David

Update: Less than 24 hours later: 636.88 MB ── canvas-2d-pixels

Update: Added images from VMMap and Process Explorer showing this firefox process and how memory use has changed over time

The longer I use FF the more memory it demands. I run very few active add-ons and plugins. Every plugin is "ask to activate" and only Flash is active at the moment. Add-ons (I only have 4): about:addons-memory Free Memory 2.0 LastPass Restartless Restart (used daily ;-) Somehow, with only a single tab open that has no content except the about:memory report, about:memory shows 300MB in canvas-2d-pixels. That is approaching one half of the private working set size. It seems excessive. 294.69 MB ── canvas-2d-pixels 0.00 MB ── d3d11-shared-textures 0.00 MB ── d3d9-shared-texture 0.00 MB ── d3d9-shared-textures 0.00 MB ── gfx-d2d-vram-draw-target 0.00 MB ── gfx-d2d-vram-source-surface 42.15 MB ── gfx-surface-win32 0.00 MB ── gfx-textures 0.00 MB ── gfx-tiles-waste 0 ── ghost-windows 200.44 MB ── heap-allocated 532 ── heap-chunks 1.00 MB ── heap-chunksize 208.28 MB ── heap-committed 532.00 MB ── heap-mapped 3.91% ── heap-overhead-ratio 0 ── host-object-urls 1.56 MB ── imagelib-surface-cache-estimated-locked 3.05 MB ── imagelib-surface-cache-estimated-total 0 ── imagelib-surface-cache-overflow-count 4.77 MB ── js-main-runtime-temporary-peak 0 ── low-commit-space-events 726.97 MB ── private 408.57 MB ── resident 3.79 MB ── system-heap-allocated 1,410.42 MB ── vsize 120.34 MB ── vsize-max-contiguous Before I waste more of my time, or any of yours, would you mind closing your tabs (at the end of the day for example) except for a single empty new tab, and letting me know how much memory your Firefox shows under about:memory canvas-2d-pixels (it's in the very last group of metrics) I would appreciate it! Thanks, David Update: Less than 24 hours later: 636.88 MB ── canvas-2d-pixels Update: Added images from VMMap and Process Explorer showing this firefox process and how memory use has changed over time
Attached screenshots

Modified by DavidBu2