It continually explodes my mind with frustration that the UI thread ever can be blocked. Like browsers pretty much locking up or at least turning to hateful molasses when some javascript goes nuts. Or god knows whatever else. Of course, Firefox has kind of been going down hill itself recently. Like how I just clicked on a file to save, and the dialog box comes up with "open" or "save" radio buttons, and then a checkbox for "always do this" and the "save" button is preselected and I cannot actually click on anything else other than the OK or Cancel buttons. Clicking on "always" does not actually turn it on. And of course it is some random thing where I would probably have a hard time reproducing it, and there's no indications in the UI itself as to why there might I dunno maybe be an overt reason for it, however stupid. There's just all too often no way to distinguish any more between crappy slow junk that make the UX suck, vs. stuff that is like written by crazy people to work however it works on purpose, no matter how broken stupid wrong broken that UX is when I get to use it. Computers really do suck these days, and they suck hard.