Facebook: toggle focus mode
Turns focus mode, which hides the side rails around the feed, on or off with one click.
Code to copy
// Toggle focus mode: hide side rails and center the feed column
const ID = 'jz-fbk-focus-mode';
const old = document.getElementById(ID);
if (old) { old.remove(); }
else {
const s = document.createElement('style');
s.id = ID;
s.textContent = '[role="navigation"][aria-label],[role="complementary"]' +
'{display:none!important}[role="main"]{margin:0 auto!important;max-width:700px!important}';
document.head.appendChild(s);
}How to use this example
- Copy the code with the button above.
- Install JustZix (2 minutes) and open the extension on the target page.
- Add a new rule matching that page.
- Enable the action panel, add a button in the Actions tab and paste the code into it — run it with one click.
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