Hi, it is possible to adjust the toolbar size but it will adjust the overall browser layout size including text, but you can try it out if it works fine for you.

1. Type in about:config in a new tab. 2. Proceed by clicking on "Accept the Risk and Continue" 3. Type in "devp" in "Search preference name" 4. Double click on "layout.css.devPixelsPerPx" and edit the value ranging from 0.7 to 1.25 according to your preference

Try not to go lower than 0.7 because it would be too small for normal use, and the default sizing of -1.0 should be the same as 1.25, thus going higher than 1.25 would cause the toolbar to take up more space.

I've done as suggested and it relieves the problem slightly but nowhere near as good as before update to version 89. My bookmarks now appear in large enough type but are widely spaced and difficult to scan down. I am, for the first time in my life, considering a different browser.