CSS:

.key-indicators__move.animate
{
   animation-timing-function:linear;
   animation-iteration-count:infinite;
   animation-duration:30s;
   animation-play-state:running;
   animation-name:move
}

Here I tested various FireFox settings in about:config to optimize the display of sites with stock quotes or news tickers.

To save processor resources, the principle of regulating the load on the central processor is used using software Throttling - idle rest cycles in the application, which are added between working operations. The purpose of this is to reduce the load on the processor. At the same time, it is necessary to maintain maximum smoothness in the reproduction of moving text objects: exchange rates and stock quotes.

Research

Testing conditions - on the website rbc.ru. using mouse scrolling, I achieved the appearance of two creeping lines, then fixed the established value %Cpu(s).

!!!Note: there is a separate page on the RBC website with a “creeping line:https://www.rbc.ru/quote/ticker/338243.

First of all, I recommend that for the smoothness of the “creeping line” you enable the parameter in the about:config menu:

dom.workers.throttling.enabled = true

The numbers on the right are the processor load (%) in the program top(on the second monitor) - %Cpu(s).

I selected the following settings based on processor load, while maintaining smooth animation:

dom.timeout.throttling_delay
1 - 59
5 - 58
10 - 56
20 - 56
40 - 54
60 - 54
80 - 55
99 - 55
1000 - 56
30000 (default) - 55
optimal value:dom.timeout.throttling_delay = 30000(default)

dom.timeout.foreground_throttling_max_budget
(with dom.timeout.throttling_delay = 40)
-1 - 53
100 - 51-54
1000 - 53-55
optimal value:dom.timeout.foreground_throttling_max_budget = -1(default)

dom.timeout.budget_throttling_max_delay
-1 - 58-60
0 - 54
1 - 54-56
50 - 55-58
80 - 55-57
100 - 52-54
130 - 53-56
200 - 59-60
15000 (default) - ?
optimal value:dom.timeout.budget_throttling_max_delay = -1(smooth movement of the creeping line)

layout.throttled_frame_rate
1 - 53
2 - 56
8 - 55
optimal value: 1 (default)

dom.animations.offscreen-throttling
false - 56
true - 53

Optimal value true (default)

media.throttle-factor
1 - 58
2 - 53
4 - 54
10 - 54
20 - 55
Optimal value 2 (default)

Conclusion

Optimal values for throttling parameters in Mozilla FireFox (for playing tickers)

Last change: 04/03/2026

Related publications

Internet browsers for Linux

Installing or updating Mozilla FireFox web browser from third-party APT repository "apt.fruit.je"

Updating Mozilla Firefox on Ubuntu and Debian OS

Optimizing Mozilla FireFox performance

LibreWolf is a fork of Firefox, for security, privacy and ad filtering