Hmm seen people say the Chase site is looking for Firefox 138.0 or later. Other web browsers that are Chrome/Chromium based dropped support of the old eol Windows 7, 8, 8.1 back in 2023 so that is not an option nor safe security wise. Mozilla is still the only ones supporting Windows 7, 8, 8.1 with Firefox 115.30.0esr and planned for updates till 115.33.0esr next year unless Mozilla extends updates again. https://support.mozilla.org/en-US/kb/firefox-users-windows-7-8-and-81-moving-extended-support You can try to change your Firefox version number to fool the Chase site. # In a new tab, type or paste '''about:config''' (with a colon) in the location (address) bar and press Enter/Return. Click the button accepting the risk. # In the search box in the page, type or paste forceVersion and pause while the list is filtered # Double-click the ''network.http.useragent.forceVersion'' preference to display an editing field, and change the value to '''128''' or '''140''' then press Enter/Return or click the blue check mark button to save the change.