How to fix the Opera "Yahoo recommends you upgrade your browser" notices in Yahoo Mail

EQ Admin

EQ Forum Admin
Staff member
Are you receiving a reminder form Yahoo to upgrade your Opera every time you login to Yahoo Mail?

First, try going to this link and installing the latest version of Opera:

Download Opera for computers - Opera Software

If that does not work, to fix this problem you'll need to trick Yahoo Mail into thinking that your Opera is Firefox.

To change your User Agent and make Yahoo think you're using Firefox download and install this plugin:

Restart Opera, then change your user agent to Firefox:

Opera Change User Agent.JPG

Try logging in at

If Yahoo Mail thinks your Firefox is too old you'll need to update the Firefox user agent.

Go to the Opera menu and select Extensions (or keyboard Control+Shift+E):

Opera Extensions.JPG

Click the Options button:

User Agent Options.JPG

Select the Firefox group and click Edit next to Firefox for Windows:

Edit Firefox user agent.JPG

Replace the string listed with:

Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:25.0) Gecko/20100101 Firefox/25.0

Opera update firefox user agent.JPG

Click Save.

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