If you’ve been plagued by memory leaks and stability issues with Safari, this latest update should help. According to the Knowledge Base:
This update contains various improvements, including fixes that:
- Improve stability
- Address issues that could cause hangs and excessive memory usage
- Address issues that could cause webpages to flash white
- Allow PDFs to be displayed within web content
The latest update can be downloaded at http://www.apple.com/safari/download/ or through your Software Update. A restart is required.