A few days ago, it was announced that Microsoft 365 office software applications and services will completely stop supporting ie11 browser from August 17, 2021, which means that after that, users will not be able to use Microsoft 365 office software on ie11 browser. Microsoft said the plan does not affect the normal use of ie11 and ie11 will not disappear. However, the market generally believes that this decision in disguise announced that IE browser will eventually withdraw from the stage of history. Recently, a spokesperson for Mozilla, the developer of the fox browser, confirmed that the company will lay off 250 employees, accounting for about a quarter of its total staff, and plans to refocus some of its teams on projects aimed at making money. < / P > < p > according to Microsoft, Microsoft 365 no longer supports ie11, which means “users will get degraded experience or cannot access when using ie11 to access Microsoft 365 applications and services”. However, ie11 “will not disappear.”. Ie11 is a component of Windows operating system, which follows the life cycle strategy of its windows product. Ie11 really disappears when the Windows version of the line is eliminated. Before that, ie11 can still be used normally, but it will not be able to use Microsoft 365 again by August next year. Although Microsoft said that the plan would not affect the normal use of ie11 and ie11 would not disappear, the market generally believed that the decision announced in disguise that IE browser would eventually withdraw from the stage of history. In addition, in Microsoft’s official IE and edge life cycle Q & A documents, there is such a content that also reveals the destiny of ie: < / P > < p > on August 16, 1995, Microsoft launched the first generation of Internet Explorer, which was once one of the most widely used and most market share web browsers in the world, and occupied 95% of the market share in 2002 and 2003. In 2008, Google’s Chrome browser gradually replaced IE after it appeared, occupying 71% of the market share, while Microsoft’s IE browser market share was only about 4%. < p > < p > after the release of ie11 in 2013, Microsoft developed the browser edge and pre installed it in Windows 10. The new version of Microsoft’s edge browser was officially released on January 15 this year. Since the new version of edge uses Google Chrome’s Chrome kernel, this is equivalent to announcing that Microsoft’s browser kernel has withdrawn from the market. On August 11, Mozilla, a non-profit organization and developer of Firefox, announced through its official blog that it would lay off 250 employees. That’s about 25% of Mozilla’s employees. < / P > < p > the main reason for the layoffs is that Mozilla’s income has dropped significantly due to the impact of the epidemic. Mitchell Baker, Mozilla’s chief executive, said Mozilla would make other changes during the budget cuts. < / P > < p > in January 2020, Mozilla announced that it had cut about 70 employees because its for-profit products did not generate enough profits. < / P > < p > “Mozilla has cut off everyone who knows how the next generation of layout engines works,” commented one technician. This triggered an earthquake beyond imagination: with only 7% of the desktop share, but using its own gecko kernel, it is the only “only child” left outside chromium and Microsoft. < / P > < p > Firefox is seen as the embodiment of the open spirit of the Internet, with the slogan “open source changing the world”. When Firefox 1.0 came out in 2004, fans spontaneously ran a full page ad in the New York Times. In 2008, the 3.0 version became “the most downloaded software in the world in 24 hours”. Mozilla chairman laments: without open source, Firefox cannot succeed. < / P > < p > it is worth mentioning that Apple Safari’s kernel WebKit is homologous to Google Chrome. This means that if IE and Firefox break down browsers together, Google Chrome may dominate the world, returning to Microsoft’s dominant situation in IE6. Why does Firefox fail? The answer may be found in the financial report: in 2018, Mozilla’s total revenue was $450 million, of which $430 million came from licensing revenue, that is, embedding search engines in browsers. Most of Mozilla’s revenue comes from search engine companies such as Google and Russia’s yandex, which pay to make their search engine the default option for Firefox. In the past ten years, the share of the browser market of Firefox has declined, but during this period, several large products such as the mobile phone and the operating system have not been realized. < / P > < p > ironically, as a browser, over 90% of Mozilla’s revenue comes from Google, its biggest rival. Since 2008, Google has started to develop its own chromium kernel, and its relationship with Mozilla has also rapidly declined. In November 2020, Google’s contract with Mozilla is about to expire, and the new contract still has three years, but the annual cost has not increased significantly. With browser development costing hundreds of millions of dollars a year, Mozilla has to find new ways to live. In a blog post, Mitchell Baker wrote that the company will focus on building new products “people like and want to use”, refocus on communities, and identify new sources of revenue.