In Firefox 87 some menus have been reorganized and some items were removed and others rearranged. See the "Changed" section in the Firefox 87.0 and 88.0 Release notes. *https://www.mozilla.org/en-US/firefox/87.0/releasenotes/ *https://www.mozilla.org/en-US/firefox/88.0/releasenotes/ ---- * To prevent user data loss when filling out forms, we’ve disabled the Backspace key as a navigation shortcut for the back navigation button. To re-enable the Backspace keyboard shortcut, you can change the about:config preference browser.backspace_action to 0. You can open the <b>about:config</b> page via the location/address bar. You can click the button to "Accept the Risk and Continue". *https://support.mozilla.org/en-US/kb/about-config-editor-firefox * We've simplified the Help menu by reducing redundant items, such as those that point to Firefox support pages that can also be accessed via the Get Help item.