Hello, Are you talking about toolbars that you create? *[https://support.mozilla.org/en-US/kb/customize-firefox-controls-buttons-and-toolbars Customize toolbars] ''RIght click on the title bar click on '''customize''''' ''Drag and drop all the itens of the toolbars inside the window, when you close it the toolbar will disappears'' -------- Or are you talking about toolbars that you installed in past? *[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Firefox in safe mode] *[https://support.mozilla.org/en-US/kb/how-to-fix-preferences-wont-save Preferences won’t save] *[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware Problems caused by malwares] *[https://support.mozilla.org/en-US/kb/disable-or-remove-add-ons Disable or remove Add-ons] Also: *[https://support.mozilla.org/en-US/kb/how-do-i-create-screenshot-my-problem Create a screenshot of the problem]

solved - right click on tabs toolbar>select ´close other tabs´