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Small window on startup

jbr replied
mbarroso

When my computer starts up and launches Firefox, the window is small and requires me to click on the full screen button. Before this it was opening at half-screen. Before that it was opening at full screen, which is preferred. I cannot get it to open in full screen despite all of the suggestions from this community. It's super-annoying. Why is this happening? What is the fix?

I am a novice and have not modified any code, but have added the extensions Duck Duck Go, Last Pass, Facebook Container, and Clear Cache. I have used these extensions for years and the problem is new. My problem must be a setting because I have not lifted the hood of Firefox or the OS and tinkered with it. Nor do I want to.

Running Firefox 152.0.5 on Mac OS Tahoe 26.5.1,

When my computer starts up and launches Firefox, the window is small and requires me to click on the full screen button. Before this it was opening at half-screen. Before that it was opening at full screen, which is preferred. I cannot get it to open in full screen despite all of the suggestions from this community. It's super-annoying. Why is this happening? What is the fix? I am a novice and have not modified any code, but have added the extensions Duck Duck Go, Last Pass, Facebook Container, and Clear Cache. I have used these extensions for years and the problem is new. My problem must be a setting because I have not lifted the hood of Firefox or the OS and tinkered with it. Nor do I want to. Running Firefox 152.0.5 on Mac OS Tahoe 26.5.1,

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How is the browser getting launched on startup? Do you use the system functionality of reopening apps and documents from the last time, explicit login item to always start, or the Firefox setting to launch on login?

Generally the system should remember window positions — however my Mac never restored any windows to either the correct spaces or displays and always makes a mess just on the focused space or display (fullscreen window is a separate space as well).

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