Hi pallara, some you can and some you can't. What changes do you want to undo?

the last update added a line just below the address bar that says...for quick access place your bookmarks here on the tool bar...I don't want to do that, my bookmarks are just fine, thank you, but there is no way to make that 'suggestion' go away which is annoying the he-- out of me. several updates ago, numerous websites were added to the address bar so it looks like i visited them recently...which i did not....they stay there no matter what i do....including clearing all the history....they are websites i never use and probably never will...i want them gone! i really like firefox but these annoyances make me want to use something else. any help you can offer will be greatly appreciated.

Hi, thank you for the additional details.

the last update added a line just below the address bar that says...for quick access place your bookmarks here on the tool bar...I don't want to do that, my bookmarks are just fine, thank you, but there is no way to make that 'suggestion' go away which is annoying the he-- out of me.

That is the "empty Bookmarks Toolbar" message. To hide/show the Bookmarks Toolbar, you can use one of these methods:

• press Ctrl+Shift+B (added in Firefox 84)
• right-click (on Mac Ctrl+click) a blank spot on the tab bar (or the "+" button), then click Bookmarks Toolbar
• (menu bar) View > Toolbars > Bookmarks Toolbar
  On Windows, tap the Alt key to activate the menu bar temporarily.
• in Customize mode > Toolbars button > Bookmarks Toolbar (see: Customize Firefox controls, buttons and toolbars)

More info: Bookmarks Toolbar - Display your favorite websites at the top of the Firefox window

several updates ago, numerous websites were added to the address bar so it looks like i visited them recently...which i did not....they stay there no matter what i do....including clearing all the history....they are websites i never use and probably never will...i want them gone!

Do you mean in the drop-down, when you click the bar, unrecognized sites appear? Firefox 75+ shows the first 8-10 entries from the Top Sites section of the Firefox Home / New Tab page first, before you start typing. You can either:

(1) Stop Top Sites from showing in the address bar drop-down when you click it

Check the "How can I control what results the address bar shows me?" section of this article: Address bar autocomplete in Firefox.

(2) Clean up the Top Sites list to be more useful

Check the steps in this article: Customize the New Tab page

If you run into any difficulties removing unwanted site tiles, let us know more information about them since we have months and months of experience helping users with those issues.