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"Disable reading from HTML5 canvas" breaks extension icons

Posted: Tue Feb 16, 2016 2:53 pm
by SuperValue
When "Disable reading from HTML5 canvas" is turned on, extension icons are frozen and can't be changed.

The best example I have is LastPass. Normally, the LastPass icon changes from Gray to Red after you log into it (change icons I believe). When the "Disable reading..." feature is turned on, the icon never changes no matter what. Whatever icon you see in the browser before you turn on "Disable reading.." is the one you are stuck with. I suspect there is some JS code they are using to change icons after you login and this breaks that. I also see it affecting uMatrix as well.

Re: "Disable reading from HTML5 canvas" breaks extension ico

Posted: Tue Feb 16, 2016 3:27 pm
by oftentired
Acknowledged in a previous bug report link here
I'll move this Topic to Known Issues forum as it was acknowledged in September.
flashpeak wrote:I will take a look into this problem. There should be a way to enable the canvas reading for extensions only.
paul1149 wrote:Thanks to @dev here, I've isolated the new html5 canvassing security option as the cause of toolbar icons not being able to change their color as they should. This setting locks the icons into whatever state they are in when it is set. Affected are icons to such extensions as Lastpass, ublock, gmail notifier, etc. This has been in effect over the last several SJ versions.

Re: "Disable reading from HTML5 canvas" breaks extension ico

Posted: Sat Feb 20, 2016 10:48 pm
by flashpeak
Actually this problem is supposed to have been fixed a while back. Are you using the latest version?

Re: "Disable reading from HTML5 canvas" breaks extension ico

Posted: Sun Feb 21, 2016 5:29 am
by josegimcam
Persists in 7.0.8.0

Re: "Disable reading from HTML5 canvas" breaks extension ico

Posted: Thu Feb 25, 2016 2:33 pm
by DiadoNiki
It persist in 8.0.1.0 also. The icon of uMatrix is frozen and show no counter of blocked page elements, but the icon of internal Ad-block work.

Re: "Disable reading from HTML5 canvas" breaks extension ico

Posted: Fri Feb 26, 2016 4:53 am
by josegimcam
Confirmed for 8.0.1.0

Re: "Disable reading from HTML5 canvas" breaks extension ico

Posted: Fri Feb 26, 2016 8:19 am
by josegimcam
It´s also affecting WOT icon in 8.0.1.0