Run in Private Windows        (*) Allow (_) Don’t Allow

Are their buttons available in the Customize panel? If so, you can drag them to the desired locations on the toolbar: [[Customize Firefox controls, buttons and toolbars]] If not, is it possible you are using a private window, but you haven't enabled the extensions to run in private windows? To check the extension status, either: * Ctrl+Shift+a (Mac: Command+Shift+a) * "3-bar" menu button (or Tools menu) > Add-ons * type or paste '''about:addons''' in the address bar and press Enter/Return In the left column of the Add-ons page, click Extensions. On the right side, find the "Manage Your Extensions" heading. If an extension is enabled for private windows, there will be a white-on-purple mask icon next to its name. If that is not present, click the extension name to open the Details tab, then scroll down to the line where you can select: Run in Private Windows (*) Allow (_) Don’t Allow You might just test one initially before switching all of them. Any difference?