Listing from your own computer (Bridge)
Download Bridge from the seller console. When you press "Mercari に出品" on a draft card and confirm, it publishes the listing on Mercari for real, in your own Chrome.
Bridge is not on the Chrome Web Store, but you can download it from the seller console under Settings → Browser extension for listing. On a draft card awaiting review, “Mercari に出品” opens a confirmation screen showing the title, price, description and photos. When you confirm, the item is listed publicly on Mercari exactly as shown. It is not a rehearsal, and the listing is not withdrawn automatically afterwards. “Connected” means the browser has checked in, not that a listing went live. Check the result on the draft or the item page.
What this is, roughly
Bridge fills the listing form in your own computer, Chrome and signed-in Mercari account, then presses Publish with the content you confirmed. Your sign-in session stays on your computer.
Just before pressing Publish, Bridge checks again. If anything does not match, it sends nothing and stops, and the card shows why:
- the title, price and photos on the form match what you confirmed;
- the photos to attach match the confirmed photos one by one, in the same order;
- the Mercari account signed in to this browser is the account being listed for;
- you are still within the short validity window after confirming (confirm again if it has passed).
An online Bridge does not prove a listing went live.
Install
- Sign in to the seller console. Under Settings → Browser extension for listing, download the package provided there. Do not use a package found elsewhere.
- Follow the console’s instructions to compare the download’s SHA-256 with the value shown there. If they differ, stop and contact operations. Unzip it into a folder you will keep.
- In Chrome, open
chrome://extensions, enable Developer mode, then choose Load unpacked. Select the extension root folder containingmanifest.json, not a child folder such asicons. - Check that Chrome shows the same extension ID as the console and that it is enabled. Return to Settings → My browser connections and follow the connection steps. Check the latest report time and version before treating the browser as connected.
For an update, download and verify the new console package, then load its verified root folder using the console’s update instructions. Read back the reported version afterward; reloading the old folder alone does not install a new version. Connected is not published: check each item’s draft or listing page for its actual result.
Connection status
The card lists one row per machine, not a single combined light — which matters when one laptop is running and another is switched off. Each row shows:
| What you see | What it means |
|---|---|
| Green dot ＋ “Connected” | That machine’s browser is reporting; this does not prove Mercari sign-in or publication |
| Grey dot ＋ “No response” | That machine cannot be reached right now (see the self-check) |
| “Last report: 〈time〉” | When that machine last checked in |
| “Our system is operating normally” | Our status, stated separately from your browser’s |
That last line is deliberate: when something will not connect, you are entitled to know whether the problem is on your side or ours, so we put our own health next to yours instead of only telling you that you are offline.
The card also names what keeps working while you are disconnected: wholesale browsing and buying, AI copywriting, draft review, reports and settlement after a sale. Publishing through Bridge and other in-browser work need Chrome online. A dropped browser is not a stopped business.
Self-check when it will not connect
When a machine shows “No response”, follow this safe rule (operational advice, not a verbatim quote from the console):
Your browser is not responding right now. Either the browser is not running, or the network is down — from our side those two look exactly the same. Please open Chrome and check your connection. Check the original task’s status before attempting the same listing again.
Why we do not just tell you which one it is: all we can observe is that the heartbeat stopped. A closed browser, a sleeping computer and a dropped network send us precisely the same signal. Guessing one would be wrong half the time, and chasing a wrong hint is the most expensive way to spend the next ten minutes.
Work down this list; most cases end at step one or two.
- Is Chrome running — quitting it entirely (not just closing the tab) stops the reports. So does the computer going to sleep.
- Is the network up — open any other page. Once it recovers, the dot usually turns green again within seconds without you doing anything.
- Has the extension been disabled — check Chrome’s extensions page (
chrome://extensions) to see whether it is still on. - Are you still signed in to Mercari — the browser may still show as connected after sign-out, but it cannot publish without a Mercari sign-in. If a different account is signed in, Bridge stops instead of publishing.
After a disconnection, check whether the original task is waiting, failed or awaiting result verification. Do not resubmit a listing just because the result is uncertain. If all four check out and there is still no response after ten minutes, contact us from the console’s support channel and include the “Last report” time shown on the card.
The self-check link on the console’s status card points at this section’s #bridge-selfcheck. Rename it and the card’s link lands at the top of the chapter instead.