Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More
Open

Small window on startup

Firefox Undefined
mbarroso
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,

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.