If you are wondering why YouTube is loading so slowly on Microsoft Edge, Safari, or Firefox compared to Googles Chrome Browser. Here is the answer for you As Google redesigned the YouTube experience last year, but the site still uses an older shadow API that is only used in Chrome, which makes other browsers render YouTube much slower. Chris Peterson, the technical program manager at Mozilla (who oversees the Firefox browser), finally gave a detailed analysis and confirmation of what we all have experienced: YouTube is slower on Firefox and Edge.
Chris Peterson explained:
“YouTube page load is 5x slower in Firefox and Edge than in Chrome because YouTube’s Polymer redesign relies on the deprecated Shadow DOM v0 API only implemented in Chrome,”
YouTube page load is 5x slower in Firefox and Edge than in Chrome because YouTube’s Polymer redesign relies on the deprecated Shadow DOM v0 API only implemented in Chrome. You can restore YouTube’s faster pre-Polymer design with this Firefox extension: https://t.co/F5uEn3iMLR
— Chris Peterson (@cpeterso) July 24, 2018
Chris Also explained “YouTube serves a Shadow DOM polyfill to Firefox and Edge that is, unsurprisingly, slower than Chrome’s native implementation. On my laptop, the initial page load takes 5 seconds with the polyfill vs 1 without. Subsequent page navigation perf is comparable,”
According to Peterson, this decision by Google results in Edge and Firefox being up to five times slower than Chrome – specifically with comments and related material seemingly taking forever to load. And the solution we would need to return to the old YouTube interface and disable this alleged throttling bug on Edge and Firefox browser. To do this
Note: Reverting back will mean you’ll lose the updated design and the dark mode feature in YouTube.
Open youtube.com on Edge browser, And press F12 key to launch the Developer mode option. Navigate to Debugger tab and Double tap Cookies to expand the sub-menu.
Here under Cookies double click on opened page URL. In the middle area where values are displayed, find PREF and modify its value as al=en&f5=30030&f6=8. That’s all close Edge Developer mode and refresh the page. Let us know this time edge load the youtube page faster than before?
If you are Firefox users download YouTube classic extension to force the site (Youtube) to load properly,
Also, you can try solution below If Youtube videos does not play well on Microsoft edge browser, but the audio does just fine. Also Sometimes playing youtube video crashes the Edge browser getting slower, getting lag, etc.
Press Windows + R, type inetcpl.cpl and ok to open Internet properties window.
Here move to Advanced tab And look for the option “Use Software rendering instead GPU rendering”
Check that box, as shown image below and click ok to make save changes.
Close and restart Edge browser and now open youtube.com and play any video let us know still browser crashes?