pay.google.com is not working when this plugin is enabled (firefox)

[gitkoyot]

When I enable this extension and try to pay anything with goole I am getting

"Something went wrong
Google Pay couldn’t load properly because pop-ups may be turned off. Turn on pop-ups in your browser settings and try again. If you're using an app, try making your purchase with Google Pay in a browser such as Chrome or Safari. [OR_BIBED_15] OR_BIBED_15"

I tried to compare console with enabled/disabled plugin but I cannot find the difference.

Please contact me if you need more details.

[gitkoyot]

for now I added this to whitelist in the expert settings of the extension

[evilstormer]

Getting the same error message even with CanvasBlocker disabled. In fact, same error even when Firefox' own tracker protection is disabled.