Blur it. Or block it.
Hide Screen gives you two ways to cover things. Blur Screen creates a movable box that blurs whatever's behind it, on every tab, on any site. Block Screen creates a solid, colored block instead, no download needed, just for this one tab.
Free. Installs in a minute. Chrome and Edge on desktop.
Install it, then forget about it
Blur Screen creates a movable, resizable box that blurs whatever's behind it. Install it once, then click its icon any time to drop that box onto any tab.
Install it
Download and unzip
Click the download button above. On Windows, right-click the downloaded file and choose "Extract All." On a Mac, just double-click it, it unzips on its own. Keep the resulting folder somewhere permanent, like Documents.
Open your extensions page
In Chrome, type chrome://extensions into the address bar and press Enter. In Edge, type edge://extensions instead. It has to be the address bar, not a search box.
Turn on Developer mode
Find the "Developer mode" switch. It sits in one of the corners of the page, often top-right, but not always. Click it on, and a few new buttons appear.
Click "Load unpacked"
One of the new buttons says "Load unpacked." Click it, a file picker window opens.
Select the unzipped folder
Browse to the folder from step 1 (named blur-screen-extension) and select it. Pick the folder itself, not the .zip file.
Confirm it's there
A small icon appears in your toolbar. See below if you're not sure what to look for.
What the toolbar icon looks like
- Chrome: a small dark square with a teal rectangle inside it, sitting near your address bar.
- Edge: the same icon and colors, usually grouped in with your other extensions until you pin it.
- Don't see it in either one? Click the puzzle-piece icon in your toolbar, find Blur Screen in the list, then click its pin so it stays visible.
Use it
Click the icon to show it
Click the Blur Screen icon in your toolbar once. A blurred patch appears on the page.
Drag it into place
Click and hold the thin bar along the top of the patch, then drag it over whatever you want to blur.
Resize it
Click and drag the small handle in its bottom-right corner to make it bigger or smaller.
Adjust the blur strength
Use the slider built into the top bar to make the blur lighter or heavier.
Switch tabs, it stays
Open a new tab or a different site. The same patch is already there, in the same spot, still blurring.
Turn it off
Click the small × on the patch, or click the toolbar icon again. Either one hides it everywhere at once.
Just need one tab? Use Block Screen
No download needed. Block Screen creates a solid, colored block, not a blur, that you drag over anything right from this page, in this tab only.
How it works
Set it up
Pick a color and how solid it looks. Adjust the size if you'd like.
Pop it out
Click the button. A small floating rectangle opens on top of everything else.
Drag it into place
Move it over anything. Drag it away the moment you're ready to reveal.
Frequently asked questions
Which browsers support this?
Chrome and Edge on desktop. Not Safari, not Firefox, not mobile.
Is anything I set saved or sent anywhere?
No. Everything stays on your device. Colors, sizes, none of it gets uploaded, stored, or shared.
Can I move, resize, or close Block Screen without a mouse?
Drag its title bar to move it, or drag its edges to resize it. To close it without touching your mouse, click the cover once so it's focused, then hit your system's close window shortcut: Alt+F4 on Windows, Cmd+W on Mac. It's a real window, so the normal shortcut works.
Why doesn't lowering Block Screen's opacity make it see-through?
Browser windows can't be made truly transparent. That's a platform limit, not a setting we control. Opacity just lightens the color itself, which is handy for a softer highlight instead of a full block-out.
Can I remove the edge around Block Screen's cover?
Not entirely. Windows, Mac, and every browser require a thin bar with a close button on any floating, always-on-top window, so you always know one is running. That's a safety rule, not a bug we can patch. We did trim it as far as it goes: our code hides the extra "back to tab" button, so only the required close control is left, and the color always fills the window edge-to-edge since rectangle is the only shape.
Can I remove the edge around the blur patch?
Yes. That border and bar are ours, not the browser's. Leave the patch alone for about two seconds and they fade on their own. Move your mouse over it and they come right back. Works the same on Windows and Mac, since it's built into the extension rather than any system setting.
What can Blur Screen see or access?
Just the visual overlay, nothing else. It doesn't read page content, collect browsing data, or send anything anywhere. It needs permission to run on every site, since that's what makes the patch follow you from tab to tab. The code is a handful of plain, readable files, so it's worth checking before you install anything that asks for that kind of access, from us or anyone else.