Making Firefox my default browser

How to make Firefox the default web browser on Windows. https://support.mozilla.org/en-US/kb/how-change-your-default-browser-firefox-windows https://support.mozilla.org/en-US/kb/change-your-default-browser In case you are actually referring to search engines in Firefox then see https://support.mozilla.org/en-US/kb/add-or-remove-search-engine-firefox https://support.mozilla.org/en-US/kb/change-your-default-search-settings-firefox