Where can I get an earlier version of Firefox (V51 or earlier)?
While newer versions offer better security, Firefox 51.0 is often sought for specific use cases: Mozilla Support firefox portable 51.0 download
Mozilla Firefox Portable 51.0 is a legacy version of the popular open-source web browser, packaged specifically for use without installation. This version remains in demand for its support of older web technologies and its ability to run on legacy hardware or in environments where system-wide software installation is restricted. Why Download Firefox Portable 51.0? Where can I get an earlier version of