1. Try clearing your browser’s cache and cookies.
2. Try with all browser extensions or add-ons temporarily disabled.
Done. Tried this in both a regular Chrome window with everything disabled, as well as in an incognito window. Same result: frequent, though not 100% uniform, “Aw, Snap” page when attempting to paste text into the Text composition window.
– Browser is Chrome 47 (most current)
– WordPress is 4.4
– Text was cut and pasted from browser bar, and as short as “https://www.nytimes.com”