I've been using this extension for quite a long while and it was working fine, but recently it has created trouble with ebay.co.uk on my laptop. I cannot navigate on eBay. I got the following error message: CanvasBlocker is slowing down Firefox. To speed up your browser stop that extension.
It's the same issue as with ebay.com.au (https://github.com/kkapsner/CanvasBlocker/issues/555). Unfortunately there is little I can do about this. So the only solution is to whitelist ebay.co.uk for the DOMRect API
