If you are experiencing technical issues with tabs in Yahoo Mail, it is possible that there is a temporary problem or outage with Yahoo's mail service. Here are a few steps you can take to troubleshoot the issue:
Check Yahoo Mail Service Status: Visit the Yahoo Mail Help website or official Yahoo Twitter account to check if there are any reported service outages or issues. If Yahoo Mail is experiencing a widespread problem, it may be affecting the functionality of tabs in the interface.
Clear Browser Cache and Cookies: Clearing your browser's cache and cookies can help resolve temporary issues. In your browser settings, locate the options to clear browsing data, including cache and cookies. Clear them, restart your browser, and try accessing Yahoo Mail again.