Firefox, Chrome, Safari and Opera all have implemented a simple defense mechanism. Mozilla was the last to fix the issue, in July. Microsoft has not yet implemented a fix for the vulnerability. Opera and Google are the two browser vendors that reacted quickest to fix this issue. The two browsers with the smallest Internet footprint lagging far behind, perhaps because they are the smallest and working for bigger market share. Maybe its time for businesses to start looking beyond the traditional browsers with bloated code and slow bug-fix reaction times.”]
Source: https://www.csoonline.com/article/2137194/does-bug-fix-speed-reflect-browser-value-.html