**Environment:** Operating System: Windows 10 PRO x64 Firefox version: Firefox Nightly 121.0a1 (2023-11-09) **Preconditions:** Clean profile VPN set to the US (New York) **Steps to reproduce:** 1. Navigate to : https://www.hulu.com/hub/home 2. Perform account login. 3. Wait for a background trailer to start playing. 4. Open the task manager and observe the result. **Expected Behavior:** The RAM usage is the same as in Chrome **Actual Behavior:** The RAM usage is higher compared to Chrome. **Notes:** - Reproducible regardless of the status of ETP. - Reproducible on the latest build of Firefox Nightly. - Works as expected using Chrome and Firefox Release. - Screenrec is attached. - Performance profile: https://share.firefox.dev/3QBgjmj - Issue found during WebCompat team [Top100] websites testing
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**Environment:** Operating System: Windows 10 PRO x64 Firefox version: Firefox Nightly 121.0a1 (2023-11-09) **Preconditions:** Clean profile VPN set to the US (New York) **Steps to reproduce:** 1. Navigate to : https://www.hulu.com/hub/home 2. Perform account login. 3. Wait for a background trailer to start playing. 4. Open the task manager and observe the result. **Expected Behavior:** The RAM usage is the same as in Chrome **Actual Behavior:** The RAM usage is higher compared to Chrome. **Notes:** - Reproducible regardless of the status of ETP. - Reproducible on the latest build of Firefox Nightly and Firefox Release - Works as expected using Chrome. - Screenrec is attached. - Performance profile: https://share.firefox.dev/3QBgjmj - Issue found during WebCompat team [Top100] websites testing