Ngenkathi i-Safari isiphequluli esihle kakhulu, isenayo ama-buts ambalwa lokho ayikwenzi kube isiphequluli esihle kunazo zonke ngaphakathi kohlelo lwe-macOS. Ukwenza ezinye zeziphambeko elisinikeza zona, sinazo izinketho ezahlukahlukene ezinjengeChannel, Firefox, Opera ... Ikakhulukazi, ngemuva kokuhlushwa yi-Chrome nokusetshenziswa kwayo ngokweqile kwebhethri nezinsizakusebenza lapho sivula ngaphezu kokuthathu amathebhu, nginqume ukukhetha iFirefox,
IFirefox, evela eMozilla Foundation, iyisiphequluli esiphelele esakha amanye amaphutha engiwathola eSafari, futhi lokho futhi ayiqophi wonke umsebenzi esiwenza kuwo, njengoba i-Chrome yenza kahle yize singangeni ngemvume nge-akhawunti yethu. Uma kungunhlokweni wakho noma isiphequluli sesibili, kufanele ugijime ukuyivuselela ngokushesha okukhulu, ngoba kutholakele ukuba sengozini kosuku olungu-zero.
Ubuthakathaka bezinsuku ezingama-zero noma usuku lwe-zero njengoba buhunyushelwe olimini lwesi-Spanish, yibuthakathaka obutholakala kuhlelo lokusebenza, noma isistimu yokusebenza uma kunjalo, kusukela inguqulo yokuqala yethulwa, okusho ukuthi, ibilokhu ikhona njalo ibikhona ukwazi ukusetshenziswa yinoma yimuphi umngane wabanye.
Ngokuya ngeMozilla Foundation, lokhu kuba sengozini kutholakala lapho isiphequluli sisebenzisa izinto zeJavaScript, izinto ezitholakala kuwo wonke amakhasi wewebhu nokuthi ngezinga elikhulu noma elincane zibhekene nokuqopha imisebenzi yethu emibili ekhasini lewebhu.
Lokhu kuba sengozini kutholakale ngumcwaningi wezokuphepha wakwaGoogle uSamuel GroB, osebenza kuhlelo lweGoogle's Project Zero kanye noCoinbase.
IFirefox isivele isisinikeza isibuyekezo esixazulula le nkinga yezokuphepha. Ukuze senze lokhu, kufanele nje sivale ngokuphelele isiphequluli bese sisivula kabusha ukuze ngaleso sikhathi, isiphequluli sithole ukuthi kunenguqulo entsha kumaseva bese siqala ukuyilayisha ngokuzenzekelayo.