firefox: thunderbird: Clipboard "paste" button persisted across tabs

The Mozilla Foundation's Security Advisory: A clipboard "paste" button could persist across tabs which allowed a spoofing attack...

Apple Safari Tabs Spoofing Vulnerability

Apple Safari is an American Apple web browser that is the default browser that comes with the Mac OS X and iOS operating systems; Safari Tabs is one of the extended Safari tabs components for use in Safari the web browser. A spoofing vulnerability exists in the Safari Tabs component in versions o...