Why Full-Page Screenshots Repeat the Header (and How to Fix It)

What’s happening

Chrome extensions can’t photograph a whole page in one go. They scroll the page and capture it one screen at a time (Chrome allows about two captures per second), then stitch the slices together.

A header with position: fixed or position: sticky stays at the top of the window while you scroll. So it’s in every slice, and the stitched image shows it again every screen-height. The same happens with cookie banners, chat bubbles and “back to top” buttons.

How ClickSnap handles it

1. The first screen is captured as it is, header included.
2. Before the next slice, ClickSnap finds fixed and sticky elements and hides them.
3. Elements that appear later (for example a bar that shows up after you scroll) are caught too.
4. When the capture ends, everything is restored exactly as it was.

The result: the header appears once, at the top, where it belongs.

If something still looks wrong

• The page scrolls inside a box (Gmail, Notion and many web apps): ClickSnap detects the main scrolling area automatically. If it picks the wrong one, scroll inside the area you want once before capturing.
• Images missing lower down: some pages load images only when you reach them. Scroll to the bottom once, then capture.
• The option is off: check Settings → Hide Sticky / Fixed Headers in ClickSnap.

Try it

Install ClickSnap and press `Alt + Shift + F` on a page with a sticky header. For the technical details, read how we made capture 2× faster.