Tab switching is very paining - Consumes lot of CPU and disk.The mouse hover CPU consumption is still a fallback.MKV files should be playable as the Edge is usingMedia Foundation playback.PDF toolbar must have the full-screen button.Unstyled full-screen controls - the Restore control is extra-large among its size.Had it been the firefox or opera, it would have been fixed in the next update. The great thing is the team hadn't even acknowledged the problems and given a reply. There are many problems which I have highlighted almost 6 months ago and there is still no update on these. The Microsoft Edge Team is not focussing on the internals, rather they are more working to bring new features to make this browser stand out among the browsers market. This move to hijack Alt+Tab is agree with you. We already have a billion different context menus in Windows. Why muddle the waters, why create more confusion? Why is Microsoft dead set on making Windows as inconsistent as possible. Why mess with something that isn't broken? There's already a well respected paradigm for switching apps with Alt+Tab and switching tabs with Ctrl+Tab. Again, Edge might give me the option to turn off Alt+Tab Hijacking but what if other programs also move in this direction and make their tabs show up in the Alt+Tab switcher, now will I have to go to each program and turn this off, that is assuming that they will make that option available. For these users their Alt+Tab experience will be ruined. They are never going to find the option to turn off Alt+Tab Hijacking buried deep in the settings.

It's not just 'power users' that have lots of windows with multiple tabs open. Sure, we might be able to turn it off in the options but this is a terrible default. If you have lots of Windows with lots of tabs open in them, switching through them will be a nightmare.

Alt+Tab for switching programs and Ctrl+Tab for switching tabs already exists. Why are you messing with things that are working.

Tab on microsoft word is not working