This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Buscar en Ayuda

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Scroll is laggy in Quantum, only when console is not open

  • 5 respuestas
  • 3 tienen este problema
  • 1 visita
  • Última respuesta de davemaison

more options

I've been working on an issue at work, that requires some elements to be "sticky", so their position gets to be updated on the scroll event.

In quantum, there is a visible lag that occurs. The frustrating part is, the lag does not occur when the developer console is open or in the pre-quantum version of firefox (or any other browser).

Turning off smooth scrolling makes a small impact as the lag is reduced, however, does not fix the issue entirely, and also is not a viable option because instructing customers to change their browser settings is laughable.

This appears to be a bug, unless there is some setting i'm unaware of that can be manipulated via javascript?

I've been working on an issue at work, that requires some elements to be "sticky", so their position gets to be updated on the scroll event. In quantum, there is a visible lag that occurs. The frustrating part is, the lag does not occur when the developer console is open or in the pre-quantum version of firefox (or any other browser). Turning off smooth scrolling makes a small impact as the lag is reduced, however, does not fix the issue entirely, and also is not a viable option because instructing customers to change their browser settings is laughable. This appears to be a bug, unless there is some setting i'm unaware of that can be manipulated via javascript?

Todas las respuestas (5)

more options

The browser all of a sudden, gave me a warning message and gave this a name: Asynchronous panning.

Then went on to explain that mozilla doesn't support dynamic styling for scrollbased events anymore: https://developer.mozilla.org/en-US/docs/Mozilla/Performance/Scroll-linked_effects

Modificadas por davemaison el

more options

Do you have hardware acceleration turned on?

more options

tomatoshadow2 said

Do you have hardware acceleration turned on?

Yes, but that's irrelevant. In the doc file the console eventually spits out, the laggy scrolling is a direct result of how the browser handles scrolling now. Which to me was a poor decision, because quantum doesn't fully support the only viable alternative, being "position: sticky"

more options

OP is the hardware acceleration that cause this.....

more options

Xtffox said

OP is the hardware acceleration that cause this.....

I said that hardware acceleration is irrelevant earlier because you cannot instruct your users to do something special for browser "X" to get site "Y" to function properly. That's just the fastest way to lose customers.

Let's say you're just trying out quantum for the first time, and your favorite site utilizes the scroll event for styling. You will probably never use quantum again because the experience would have been so bad.

Otherwise developers have to develop with quantum specifically in mind, and that is the same exact issue that has made internet explorer terrible and unusable.

Modificadas por davemaison el