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T
Terry_ALE
November 23, 2025
Question

High Memory Usage - running slow

  • November 23, 2025
  • 1 reply
  • 43 views

The past few weeks I have noticed that my browser (latest Firefox 64-bit) on Windows 11 uses 3-4 GB of RAM.  This causes entries in the various areas (accounts from banking for example) to run slow.

 

Is there a fix for this?

1 reply

J
Jovelyn_MQuickBooks Team
QuickBooks Team
November 23, 2025

Hi Terry!
 

Thank you for providing detailed information about your browser’s status and performance. We appreciate your effort in ensuring your browser is up-to-date for optimal usage.
 

QuickBooks Online (QBO) aims for frequently accessed pages to load within 10 seconds and actively monitors its systems to maintain this benchmark. However, QBO’s performance depends not only on web connectivity but also on your device’s processing power, available memory (RAM), and internet bandwidth. Any limitations in these areas can affect its functionality. Please ensure your system meets the minimum requirements to avoid performance issues.
 

With that said, I recommend clearing your browser cache, which temporarily stores files to speed up website loading. However, outdated cache files can cause problems over time. 

Here’s how to clear it in Mozilla Firefox:
 

  1. Select the Menu (☰) icon.
  2. Choose Settings.
  3. Go to Privacy & Security.
  4. Under Cookies and Site Data, select Manage Data.
  5. Type "Intuit" in the search bar and press Enter to locate Intuit cookies.
  6. Select Remove All Shown.
  7. Click Save Changes.
  8. Restart Mozilla Firefox to apply the changes.
     

Alternatively, we recommend using Google Chrome for QuickBooks Online, as it offers better compatibility and performance. You can also test your internet speed using the Google Speed Test and review the results assess whether bandwidth issues could be contributing to slower performance.
 

For further information, please review this helpful article: Why is My QuickBooks Online Slow?
 

Feel free to reach out with any follow-up questions or concerns about improving your QBO experience. We’re here to help!

T
Terry_ALEAuthor
November 23, 2025

In Firefox 124.0.1 64-bit I cleared the browser cache for intuit which included: 226 Cookies and 1.1 MB Storage

 

My speed is:

654 Mbps Download
43 Mbps Upload

 

Loading QB with nothing else is using 2 GB.

L
lin_jcaj
Level 9
November 23, 2025
Thanks for your update, Terry. We appreciate you working with us.
 
Please note that the memory consumption when using QuickBooks Online (QBO) in a web browser varies and is not fixed. It can reach 2 GB or more, depending on several factors:
 
  • Complex tasks within QBO
  • Number of QuickBooks tabs and Extensions

 

To achieve optimal performance, QuickBooks recommends having at least 4 GB of system RAM.
 
Alternatively, you may want to consider accessing QBO using other supported browsers, such as Google Chrome or Microsoft Edge.
 
If QBO performs better on Chrome or Edge, you can consult with an IT professional to examine the configurations in your Firefox browser. An IT expert can help optimize your browser settings and ensure they align with QBO’s system requirements.

Feel free to add in the comments if you have other questions, and we're here to help.
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