Ngemva kweminyaka eyisishiyagalolunye yomsebenzi, izingxenye zokugcina ze-UI ezisebenzisa i-namespace ye-XUL zisusiwe ku-codebase ye-Firefox. Ngakho, ngaphandle okumbalwa, iFirefox manje isebenzisa ubuchwepheshe bewebhu obujwayelekile (ikakhulukazi i-CSS flexbox) ukuze inikeze isixhumi esibonakalayo somsebenzisi weFirefox, kunokuba izibambi ezithile ze-XUL (-moz-box, -moz-inline-box, -moz-grid, - moz -isitaki, -moz-popup). Ngokuhlukile, i-XUL iyaqhubeka nokusetshenziswa ukubonisa amamenyu wesistimu namaphaneli azivelelayo ( Futhi ), kodwa esikhathini esizayo bahlela ukusebenzisa i-Popover API ekusebenzeni okufanayo.
Amandla okusebenzisa i-XUL kuma-add-on anqanyulwa ngo-2017, futhi isixhumi esibonakalayo sakhululwa ekubopheni i-XML Binding Language (XUL extension) ngo-2019 (izibopho ze-XBL ezichaza ukuziphatha kwamawijethi e-XUL zathathelwa indawo yi-Web Components), kodwa Ngesikhathi esifanayo, izibambi ze-XUL ziqhubekile nokusetshenziswa lapho kwakhiwa izici zesiphequluli.
Source: opennet.ru