The state of mhtml support is fairly pathetic at the moment. Firefox broke mhtml compatibility with the quantum overhaul. Chrome's mht support had been a hit an

The state of mhtml support is fairly pathetic at the moment. Firefox broke mhtml compatibility with the quantum overhaul. Chrome's mht support had been a hit and miss over the years, sometimes removing the GUI option entirely and requiring one to manually launch the browser with a special tag to enable it. The only browser with a history of consistent mhtml support happens to be....Internet Explorer, followed by a bunch of even more obscure vendors that nobody really uses. I am currently dealing with the problem of parsing large mht files (several megabytes and up). A regular web browser would hang and crash upon opening these files and most ready made tools I could find struggle with the number of embedded images. It's very much a neglected format with very little support in 2019.