WebPG extension causes slow scrolling on some webpages

[meersjo]

Hey there,

I'd been noticing sluggish scrolling on some pages in Firefox for some time, and by sequentially disabling all my plugins, I've come to the conclusion that the WebPG extension is the cause. Disabling only this plugin yields normal scrolling; enabling /only/ this plugin causes sluggish scrolling.

I'm running:

• Linux Mint 17 (Qiana) 64-bit; based off Ubuntu Trusty
• Firefox from distro packages, version 31.0+build1-0ubuntu0.14.04
• WebPG 0.9.4, built myself from Git (commit db2e130773677faabccb7a689304756f0735bf2b )

Sample URLs that scroll slow with the extension enabled:

• https://github.com/MarkLeith/mysql-sys
  • but not https://github.com/MarkLeith/dbahelper for some reason...
• http://imgur.com/gallery/iJpTm (and pretty much any imgur page)

Please let me know if there's any more information I can provide to help solve this.

Thanks for the excellent work, Johan

[kylehuff]

@meersjo

Thank you for the very detailed bug report! This is likely caused by the parser, which is rather slow in firefox (that is not to say how I am parsing cannot be improved).

I will look into this as soon as I can, however I am unfortunately bombarded at work and also in the middle of fixing WebPG for Chrome, given that Chrome discontinued support for NPAPI (which completely breaks WebPG for Chrome).

Please feel free to prod me if I have not made any progress or updates here soon, a squeaky wheel often gets oiled.