How to fix the Safari (Mac) "Yahoo recommends you upgrade your browser" notice in Yahoo Mail


EQ Forum Admin
Staff member
To fix the upgrade notice in Safari on older Mac computers that do not support the latest version of Safari please use these steps:

  • Launch Safari.
  • In the menu bar at the top of your screen, click Safari and then select Preferences,
  • Click the Advanced tab.
  • Select "Show Develop menu in menu bar"
Show develop menu in safari menu bar.JPG

  • Go back to the Safari menu bar, click Develop and select User Agent
  • Select Other
  • Paste in the following user agent string:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9) AppleWebKit/537.71 (KHTML, like Gecko) Version/7.0 Safari/537.71

After clicking OK the Yahoo page should reload and you will not be prompted with the upgrade notice during future logins.