A garage door safety bracket (26) utilizes a fixed member (42) and a sliding member (44) to inhibit removal of the bracket (26) while there is tension in a cable (40) which is attached to the sliding member (44). The sliding member (44) includes three access apertures (68) and moves between tensioned and untensioned positions. Tension in the cable (40) forces the sliding member (44) into the tensioned position in which the access apertures (68) are offset from the panel fasteners (48) which attach the bracket (26) to a lower panel (30L) of a garage door (22). When the tension on the cable (40) is released, the sliding member (44) slides into the untensioned position in which the access apertures (68) are aligned with the panel fasteners (48) permitting access to the panel fasteners (48). A roller mount (46) is separately attached to the sliding member (44) by roller mount fasteners (74) which permit a lower roller (32L) to be serviced without releasing the tension on the cable (40).