Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Αναζήτηση στην υποστήριξη

Προσοχή στις απάτες! Δεν θα σας ζητήσουμε ποτέ να καλέσετε ή να στείλετε μήνυμα σε κάποιον αριθμό τηλεφώνου ή να μοιραστείτε προσωπικά δεδομένα. Αναφέρετε τυχόν ύποπτη δραστηριότητα μέσω της επιλογής «Αναφορά παραβίασης».

Μάθετε περισσότερα
Αυτό το νήμα αρχειοθετήθηκε. Κάντε νέα ερώτηση αν χρειάζεστε βοήθεια.
Αρχειοθετήθηκε

Firefox using high memory when running multiple web tools

Firefox Αποκρισιμότητα εφαρμογής
Robert Lewis απαντήθηκε
Steven Parker
Steven Parker

Hi everyone,

I’ve noticed that Firefox tends to use a lot of memory when I run several browser-based tools at once — especially web calculators or dashboards that update data dynamically.

For example, when I’m testing a lightweight web calculation app (something similar to a gratuity calculator that updates values in real time), Firefox memory usage slowly increases, and sometimes the browser even freezes if multiple tabs are open.

I’ve already tried:

Clearing cache and disabling extensions

Running in Safe Mode

Using hardware acceleration on/off


Still, the problem persists.

So I’d like to ask:

1. Are there any specific settings or flags that can help manage memory usage better for interactive web tools?


2. Does Firefox handle JavaScript-heavy calculations differently compared to Chromium-based browsers?


3. Any recommended performance tweaks for developers testing such tools locally?


Would really appreciate advice from anyone who’s optimized Firefox for this kind of lightweight, web-app testing.

Thanks in advance! 🙏 bold text

Hi everyone, I’ve noticed that Firefox tends to use a lot of memory when I run several browser-based tools at once — especially web calculators or dashboards that update data dynamically. For example, when I’m testing a lightweight web calculation app (something similar to a gratuity calculator that updates values in real time), Firefox memory usage slowly increases, and sometimes the browser even freezes if multiple tabs are open. I’ve already tried: Clearing cache and disabling extensions Running in Safe Mode Using hardware acceleration on/off Still, the problem persists. So I’d like to ask: 1. Are there any specific settings or flags that can help manage memory usage better for interactive web tools? 2. Does Firefox handle JavaScript-heavy calculations differently compared to Chromium-based browsers? 3. Any recommended performance tweaks for developers testing such tools locally? Would really appreciate advice from anyone who’s optimized Firefox for this kind of lightweight, web-app testing. Thanks in advance! 🙏 '''bold text'''

Όλες οι απαντήσεις (1)

TyDraniu
TyDraniu
  • Top 10 Contributor

Hi, can you record this behavior using the performance profiler? Thanks.

Once you've done that, please create a new bug on https://bugzilla.mozilla.org and share your profile URL there.