Hi,
Your profile indicates you are running 10.5.7. If that is correct, then you need to update your system software. Download and install the
v10.5.8 Combo Update
Try Safari maintenance...
From the Safari Menu Bar, click Safari / Empty Cache. When you are done with that...
From the Safari Menu Bar, click Safari / Reset Safari. Select the top 5 buttons and click Reset.
Go here for trouble shooting 3rd party plugins or input managers which might be causing the problem.
Safari: Add-ons may cause Safari to unexpectedly quit or have performance issues
And make sure Safari is not running in Rosetta. Right or control click the Safari icon in your Applications folder then click Get Info. In the Get Info window click the black disclosure triangle so it faces down. *Where you see Open using Rosetta... make sure that is NOT selected.*
Web pages now include a small icon or 'favicon' which is visible in the address bar and next to bookmarks. These icons take up disk space and slow Safari down. It is possible to erase the icons from your computer and start fresh. *To delete Safari's icon cache using the Finder, open your user folder, navigate to ~/Library/Safari/ and move this file "webpageIcons.db to the Trash.*
Open Keychain Access (Applications/Utilities) Select Passwords on the left then delete your Yahoo keychain on the right. *Quit Keychain Access and relaunch Safari.*
Carolyn 🙂