irchiver author here. So I investigated for a long time whether a browser extension is possible for automatically screenshotting a page. It turns out it's not b

irchiver author here. So I investigated for a long time whether a browser extension is possible for automatically screenshotting a page. It turns out it's not because of the limitations of browser extensions themselves, and from the way WebExtensions are going, it will never be. I've only found a way to do this on Windows right now (since Windows 8.1) due to an undocumented flag that lets you capture images from the browser even with hardware acceleration on (which is the default). Though I trust Microsoft to maintain backwards compatibility even for undocumented features indefinitely.