I've noticed a problem with the edX website in Pale Moon. I'm using 28.7.2 on Ubuntu 18.04 64-bit.
Some of the pages don't render properly, e.g. the computer science course page (see the attached PNG). I've replicated this on a fresh profile. I can't replicate the issue on Firefox 70.
Additionally (while preparing this post), I noticed I can't take a full-page screenshot of the page using the Developer toolbar (screenshot /tmp/screenshot.png --fullpage), the following is printed into the browser console (excuse the poor formatting):
Code: Select all
Exception { }
cli.js:2056
Object { isTypedData: true, data: Object, type: "error" }
cli.js:2056
Object { columnNumber: 0, lineNumber: 314, message: "", stack: "createScreenshotData@resource://gre…" }
cli.js:2056