Firefox for Windows make major change in Toolbar in version 89 upgrade: New in version 89: Say hello to a fresh new Firefox, designed to get you where you want to go even faster. We’ve redesigned and modernized the core experience to be cleaner, more inviting, and easier to use. Beginning in 89, you’ll notice a number of changes, including: Simplified browser chrome and toolbar: Less frequently used items removed to focus on the most important navigation items. How do I avoid Firefox deleting lesser used links in my Toolbar? They are there for a reason.