Dear community, I have Firefox 109.0 (x64) on Windows10, x64 on two devices. (stationary pc & notebook) I do have a relative weak device creating & serving a webpage (ESP32 module dynamically creating the content). Firefox on the notebook, the page gets instantly displayed but is initially "empty". It gets populated over time, which can take a while as the ESP32-module queries sensor data, and generates Textboxes and labels with the according data, so line by line the sensor data is added to the page. On the stationary computer the (same Firefox, same Version, same OS) the page-loading indicator is shown and the page remains empty until the ESP-module has finished the creation and then it is instantly displayed with all content. The strange thing: I did create a new profile on both devices to assure, that the different behavior it is not caused by an extension or customized setting. With the new profile, the behavior remains the same on both devices. Any ideas, how I can make both devices behave identically? I would prefer the "Line by line creation and display of the web page" instead of waiting, until page load was completed ? Best regards and thanks for any tips.