The new Firefox for Windows 10 goes further. When Windows 10 users look to the Cortana search box built into the task bar, web searches done from that search box will "show results in the default search engine you choose in Firefox," rather than defaulting to Bing, Firefox officials said.
The Firefox for Windows 10 browser supports third-party add-ons -- unlike Microsoft's Edge at this point, though add-on support is coming, Microsoft officials have said. Mozilla is distinguishing between Mozilla-certified add-ons and non-certified ones. Non-Mozilla-certified add-ons currently include warnings, and in the future, will be disabled by default.
The new Firefox also includes user interface tweaks, including bigger and bolder design elements.