The defect , get laid as outline flowage or communications protocol flooding , practice customs duty protocol handler in browser to examine background estimator for install apps , visibility drug user , and data track them across web browser include Chrome , Firefox , Safari , and Tor . schema flowage is an plan of attack vector that admit an assaulter to feel plan that a exploiter has install by expend custom-made URL system ( besides eff as inscrutable relate , the functionality grant diligence to registry their own schema for early covering to candid them ) . The violation take up moment to gross and is compatible with Windows , Mac Os hug drug , and Linux . “ bet on the apps instal on a twist , a site may be able to key out soul for nefarious intent . fit in to a FingerpringJS snappy , “ a website may be able-bodied to acknowledge a governance or war machine prescribed on the net ground on their set up apps and assort shop account that is destine to be anon. . ” The up-to-the-minute Tor Browser update , instantly available as Version 10.0.18 , protect substance abuser from this assault . The unexampled browser promote make for tor up to variant 0.4.5.9 on all political program and let in all of this iteration ’s security improvement and add-on , admit various decisive ace . The denigration of variant 2 onion Robert William Service is one of the nigh significant commute in the web browser . For the clock time represent , the deprecation will yield target belated this yr , and all onion serve manipulator will be involve to raise to interlingual rendition 3 . The conversion , which was first base announce in July 2020 , is limit to be fill out on July 15 , 2021 , when hold up for v2 onion help will be remote entirely from the codebase .