As a result of a settlement with the Hershey’s Company, Let’s Buy British Imports, or L.B.B., agreed this week to stop importing all Cadbury’s chocolate made overseas. The company also agreed to halt imports on KitKat bars made in Britain; Toffee Crisps, which, because of their orange packaging, and yellow-lined brown script, too closely resemble Reese’s Peanut Butter Cups; Yorkie chocolate bars, which infringe on the York peppermint patty; and Ms. Perry’s beloved Maltesers.

“Things in the world are bad enough as it is,” Ms. Perry said, “and now you’re going to take away our chocolate?”

Jeff Beckman, a representative for Hershey’s, said L.B.B. and others were importing products not intended for sale in the United States, infringing on its trademark and trade dress licensing. For example, Hershey’s has a licensing agreement to manufacture Cadbury’s chocolate in the United States with similar packaging used overseas, though with a different recipe.

“It is important for Hershey to protect its trademark rights and to prevent consumers from being confused or misled when they see a product name or product package that is confusingly similar to a Hershey name or trade dress,” Mr. Beckman said in an email.

What many Britons and British-chocolate lovers are most incensed about is the difference in taste between chocolate made in Britain and chocolate made in the United States.