Since January 2023, Firefox Speedometer score has improved by 50%
Few days ago Mozilla announced through a blog post, the results of some analyzes performed on Firefox performance. Mozilla mentions that the browser has improved significantly this year, as it particularly presented some of the measurements it observed during internal testing and in the Speedometer benchmark.
The report indicates that since the beginning of 2023, browser speed has improved by 50% according to Speedometer criteria. The company believes this has resulted in a significant performance improvement for Firefox users. In particular, Mozilla claims that pages render 15% faster on average.
And since the beginning of the year Firefox has improved a lot in terms of performance, although it is mentioned that actual performance may vary depending on many factors, such as hardware configuration, operating system and the complexity of the web pages visited. But browser developers and engineering teams use these tools to identify areas of improvement in their browser and optimize performance, benefiting end users by giving them a better browsing experience.
: average time from the start of the response to the first image with content in milliseconds
According to Mozilla, the time it takes for the browser to render the first element of the DOM First Contentful Paint (FCP) is a better measure of performance than the onload event.
By tracking the time between receiving the first byte from the network and the FCP, this indicates how quickly the browser provides feedback to the user on page loading and is therefore an essential metric for understanding the user experience. . Although a lot depends on the web pages themselves, if the browser improves overall performance, this figure should decrease.
Mozilla's latest observations reveal that this time has fallen from about 250 ms at the beginning of the year to 215 ms in October. This means that a user receives feedback on a page that loads almost 15% faster than at the beginning of the year.
According to Mozilla:
It's important to note that this is all the result of optimization work that wasn't even explicitly targeted at page loading. To fully understand the origin of this improvement, the team proposes to analyze another element of temporal data: the time required to execute JavaScript code while a web page loads.
It looked at the 95th percentile, which represents the pages with the most JavaScript content and highlights a huge opportunity for browser developers to eliminate friction for users. The image below shows that the 95th percentile fell from 1.560 ms at the beginning of the year to around 1.260 ms in October. This represents a significant improvement of 300 ms, or almost 20%, and Mozilla believes this is responsible for much of the reduction in FCP delays. "This makes sense, as the Speedometer 3 work led to significant optimizations in the SpiderMonkey JavaScript engine," says Mozilla.
Mozilla announces that has also examined the responsiveness of the pages after loading. The main metric that Mozilla collects here is "keypress latency", that is, the time that elapses between the moment a key is pressed on the keyboard and the moment the result is displayed on the screen. Displaying text on the screen may seem simple, but there is a lot to do to make that happen, especially when a web page runs JavaScript scripts to respond to the keypress event.
Besides that, Mozilla boasts that Firefox surpassed Google Chrome in terms of performance, for a few months, because according to analysts, this is not a surprise given the evolution of Firefox in recent years. There was a time when Firefox was significantly slower than Chrome, but in recent years the gap has narrowed considerably, as Firefox added features that helped deliver much better performance under heavy loads.
Without further ado, it is worth mentioning that Firefox continues to move in the right direction, as the Speedometer results show and that although Firefox has improved a lot, Chrome continues to dominate the market and Firefox regaining the ground it once had may not be happen until several years later.
Finally yes you are interested in knowing more about it, you can check the details in the following link
Firefox has improved a lot, I realized that a while ago but it is still a bit slow compared to the others with Chrome system, a few days ago I installed Midori which is based on some things from Firefox and it is much faster but as always Firefox is my favorite on linux.
regards