An anonymous reader quotes a report from Reuters: Meta employees distributed flyers at multiple U.S. offices on Tuesday to protest the company's recent installation of mouse-tracking software on their computers , according to photos of the pamphlets seen by Reuters. The flyers, which appeared in meeting rooms, on vending machines and atop toilet paper dispensers at the Facebook owner's offices, encouraged staffers to sign an online petition against the move. "Don't want to work at the Employee Data Extraction Factory?" they asked, according to the photos seen by Reuters. [...] The pamphlets and the petition both cite the U.S. National Labor Relations Act, saying "workers are legally protected when they choose to organize for the improvement of working conditions." In the UK, a group of Meta employees has started organizing a drive for unionization with United Tech and Allied Workers (UTAW), a branch of the Communication Workers Union.…