Magnifier

Magnifier lets you hover over any content on a webpage and instantly see it enlarged in a floating lens overlay — no clicking, no zooming the whole page.

What it magnifies:

Text — reads the exact font, size, weight, and color of what's under the cursor and renders it enlarged inside the lens Images — zooms into photos and background images with pixel-accurate centering PDFs — open any PDF in the built-in viewer and magnify rendered pages directly Customize the lens:

Shape — Circle for a classic loop feel, or Rectangle for a wide reading-strip view Zoom — 1× to 10× in 0.5 steps Size — Small, Medium, or Large Position — Place the lens to the Left, Right, Above, Below, or Centered on the cursor Touch support — Works on Android Firefox; the lens follows your finger Controls:

Toggle on/off per tab from the toolbar popup "Ctrl+M" keyboard shortcut to toggle instantly "Escape" key to dismiss the lens Settings sync automatically across devices via Firefox Sync The magnifier is active only for the tab you enable it on - other open tabs are never affected. When you switch tabs the lens closes automatically. No data is collected or transmitted.