adj. Describes a legal agreement that the user accepts indirectly by browsing an online site.
2010
Even Cory Doctorow, the digital rights activist and online champion of all things weird, includes a lengthy legal warning at the bottom of his emails. He uses the space to "require" recipients to free him from their companies’ "non-negotiated agreements, licenses, terms-of-service, shrinkwrap, clickwrap, browsewrap, confidentiality, non-disclosure, non-compete and acceptable use policies."
2009
Third, even if licensing e-books is deemed acceptable, Amazon's conditions of use may not be enforceable. Contracts require mutual assent. Agreements posted in the background on the Web — purporting to bind users without any action on their part — are known as "browsewrap," and their legality as contracts is unclear.
1992 (earliest)
Another type of licensing has been named "browse-wrap licensing."
The "wrap" part of browsewrap comes from the adjective shrinkwrap, which refers to a license or agreement inside a package (particularly software) that can only be read and accepted by first opening the package (which begins, of course, by removing the shrinkwrap that encloses the box).