
The real surprise, however, was Edge, weighing in at only 873 MB of memory. Running 10 tabs took up 952 MB of memory in Chrome, while Firefox took up 995 MB. This replicates a user multitasking - writing in one window, and researching in another, for example. For the final test, I opened up each browser twice, and launched 20 tabs in each instance. I opened three copies apiece of each website from the 20-tab test. Next, to really tax each browser I opened a whopping 60 tabs in Chrome, Firefox and Edge. This time around, I kept the initial 10 tabs, then added 10 more from equally demanding sites: eBay, Best Buy, the New York Times, Disney Plus and Google Stadia, to name a few. When a browser has a ton of tabs open, rather than try to run each one simultaneously, it will often prioritize and optimize data in order to save RAM. The second step was to see how each browser handled massive amounts of data.

From there, all I had to do was monitor memory usage in Windows Task Manager. When Firefox is set as the default browser, Windows 10 will remember your choices and simply use DuckDuckGo or Google rather than taking you to for every search you’re making.I used Guest profiles in Chrome and Edge, and a “clean” profile in Firefox, in order to prevent extensions or bookmarks from clogging things up. Also, if a user has ignored Microsoft Edge which has Bing as the default search engine, they’ll find themselves using it every time they search anything on the web from the Windows 10 search button on taskbar or Cortana. In the case of the web, the set default browser is what opens up any links clicked on.

It is also important because thanks to Cortana integration, users can search for anything either stored locally or on the world wide web. This is an important move meant to make sure its loyal users do not become too cosy with what Microsoft is offering as an Internet Explorer replacement and forget about their beloved Firefox.

Since Windows 10 resets the default browser to Microsoft’s own Edge browser, the Firefox team has also taken steps to inform users on how to set Firefox as the default browser.
