🎫 CouponForge
📣 What this app will do for you
This app will keep your own coupon codes one click away at checkout — save the codes you already have (each with a store name and a note) in this browser extension, and when a checkout page shows a promo-code field, a small button beside it lets you pick one of your saved codes and fill the field. Your codes stay in your browser's local extension storage. Heads up: CouponForge is a browser extension, not a desktop app — it has no coupon-code database and never finds, scrapes, or auto-applies codes; nothing is filled until you click, it never submits an order, and it is not listed in the Chrome Web Store or Firefox Add-ons, so you install it yourself from the download (in Firefox it loads as a temporary add-on that is removed on restart).
Your own coupon codes, saved in your browser — one click away when a checkout asks for one.
$19 one-time price. No subscription. Yours forever.
Buy Now — $19Secure checkout powered by Stripe.
What's included: the full CouponForge browser extension (Chrome, Edge, and other Chromium browsers, plus Firefox) · one license covers up to 3 browsers (free a slot anytime from the extension's options page with "Deactivate," or from your CertSight account page by regenerating your key) · your license key is emailed at checkout and can also be shown on screen right after payment.
What it does
- It keeps YOUR codes — it has no coupon-code database. You save the codes you already have (from emails, loyalty accounts, receipts) in the extension, each with a store name and a note. CouponForge does not find, fetch, or bundle coupon codes, and it never claims a code works — you find out when you try it at checkout, same as typing it yourself.
- Fill-on-click at checkout. When a checkout page shows a promo-code field, CouponForge puts a small 🎫 button next to it. Click it, pick one of your saved codes, and the code is filled into the field (with the input/change events pages listen for). You review everything and place the order yourself — CouponForge never submits a form or an order.
- Nothing is filled until you click. There is no auto-apply: no code is ever typed into a page unless you choose it, and no code is tried behind your back.
- A popup for copying, too. Click the toolbar icon to see your saved codes, each with a Copy button — handy for checkouts the button doesn't reach, or for pasting a code anywhere else.
- Your codes stay in your browser. Codes are stored in the browser's own extension storage (chrome.storage.local) on your computer — not on CertSight's servers, and they don't sync between browsers. The only network calls the extension ever makes are the license activation and deactivation requests to certsightprep.com.
- Deactivate from inside the extension. The options page has a Deactivate button that frees that browser's activation slot when you move to a new browser or computer — no support ticket, no waiting.
🔒 Permissions, in plain terms
- What it asks for: the
storagepermission (to keep your codes and license in the browser) and host access to https pages (https://*/*), which is what lets the content script run on checkout pages. - Why the broad host access: a promo field can appear on any store's checkout, so the script has to be allowed everywhere to find it. A field is recognized only by its own attributes — if its name, id, placeholder, aria-label, or class contains a word like promo, coupon, discount, voucher, or promocode, it gets the 🎫 button.
- What the script does NOT do with that access: it reads nothing on the page beyond those input attributes, collects no browsing history, sends nothing anywhere, and runs no ongoing watcher — after the page loads it rescans a few times over about ten seconds for late-appearing checkout forms, then stops.
⚠️ Scope notes — read before you buy
- Not in any store. CouponForge is not listed in the Chrome Web Store or Firefox Add-ons. You download a zip from this page and install it yourself using the steps below — that's also why there's no automatic update channel; if we publish a new version, you download it again from here.
- Your browser may warn you. Chrome and Edge periodically remind you that developer-mode extensions are installed and may suggest disabling them — that's the standard warning shown for every extension installed outside the Web Store, not something specific to CouponForge.
- Firefox installs are temporary. Firefox only lets an unsigned extension in as a "temporary add-on," which Firefox removes when the browser restarts — you'd load it again after a restart. A permanent Firefox install would need Mozilla's signing, which v1 doesn't have.
- HTTPS checkouts only, and detection isn't magic. The button appears on https pages, next to fields whose attributes use the usual promo-code wording. A checkout that names its field unusually won't get a button — the popup's Copy button still works there.
- One browser profile = one activation. Each install identifies itself with a random id generated in the browser (not a hardware id). One key covers up to 3 browsers; different profiles in the same browser count separately.
- Not yet click-tested in a real browser by a human. Checkout, licensing, and activation are covered end to end by automated tests, and the extension's own logic has its own offline test suite, but it has not yet had a full human click-through in a real Chrome or Firefox — the in-browser experience is v1 and we will say so plainly until that pass is done.
If any of the above is a deal-breaker for you, v1 isn't for you yet — and we'd rather tell you now than after checkout.
Download & install
One zip for every browser — unzip it first, then follow your browser's steps.
Chrome / Edge / Chromium:
- Download the zip above and unzip it (you'll get a folder containing
manifest.json). - Open
chrome://extensions(Edge:edge://extensions). - Turn on Developer mode (top-right toggle).
- Click Load unpacked and pick the unzipped folder.
Firefox (128+):
- Download the zip above and unzip it.
- Open
about:debugging→ This Firefox → Load Temporary Add-on. - Pick the
manifest.jsoninside the unzipped folder. (Temporary: Firefox removes it when the browser restarts.)
How activation works: at checkout your license key is emailed to you (and can be shown on screen right after payment). Open CouponForge's options page (right-click the toolbar icon → Options, or the "Manage codes" link in the popup), paste the key into the License section, and click Activate — that's a one-time online check; afterwards the extension works offline and doesn't phone home except when you deactivate. One license activates in up to 3 browsers. Replacing a browser? Use Deactivate on the options page to free its slot, or generate a fresh key from your account page (the old key stops working).