alertBlock
Extension Delisted
This extension is no longer available in the official store. Delisted on 2025-09-17.
alertBlock removes javascript alert and confirm dialogs from all pages.
Removes JavaScript alert and confirm dialogs from all pages. Stops annoying confirm navigation dialog when leaving some websites. Lightweight app with no adverts.
Fixed bug with iframes!
Latest reviews
it works perfectly, thank you
does not work
Various sites I visit refuse to close until I click a confirm button on a dialog. Writing in 2018, this extension did not make any difference; the confirmation dialogs still appear.
Perfect, thank you sooooo much. works like a charm
Blocked that annoying facebook crap so now I can glide in and out with no resistance.
Does not block Javascript alerts and dialogue boxes...
does not work
