Currently the Firefox desktop Settings or the "about:preferences" page have certain settings categorized. I believe this should be removed and have all settings place on a single page.
The issue is the extreme differences in the six categorizes present. "Sync" & "More from Mozilla" side-tab can easily fit into one page. Next in size is "Home" & "Search", while the last two largest side-tabs, "General" & "Privacy & Security", are no where near the previous two sizes. Lots of scrolling and searching can be reduced in categories that seem incorrect to the setting can be avoided if the option is given to let the user decide.