So the new tab bar has been dissolved together into a mush of text, there is no definition between the tabs and the background. My eyesight isn't great and the new update has made Firefox very difficult to use. Please bring back the tab defining features and the contrast between the tabs and the background. 'Modern' doesn't always mean better! It would also be nice if you would respect the general Windows settings that make these components visible. Discontinuity between different apps makes it very difficult to navigate the browser.