How to keep the same bookmarks in Chrome, Firefox, and Edge

Sync is a browser feature, not a bookmark feature

You test in Firefox, live in Chrome, and open Edge because one client's portal only behaves there. The staging URL you bookmarked this morning exists in exactly one of those three. So you search your history, or you paste the link to yourself in a chat window, which is how links go to die.

This is not a bug you can configure away. Chrome sync ships as part of a Google account; Firefox Sync ships as part of a Mozilla account; Edge uses Microsoft. Each vendor syncs its own browser to its own other copies. No browser will ever sync your bookmarks into a competitor's browser — the shared layer has to sit outside all of them.

The manual round trip, and why it gets ugly

You can move bookmarks between browsers by hand today, for free. It works once and degrades fast.

The problem is the second time. Import is additive, not a merge — nothing is matched or deduplicated, so a re-import gives you a second copy of every link, usually inside a folder named after the browser you took it from. Do this quarterly for a year and you have four generations of the same tree. It is fine as a one-time migration when you are switching browsers for good. It is not a way to work in two browsers at once.

• In Chrome or Edge: open the bookmark manager, three-dot menu → Export bookmarks, save the HTML file.
• In Firefox: Ctrl+Shift+O to open the Library, then Import and Backup → Import Bookmarks from HTML.
• In Chrome or Edge, going the other way: bookmark manager → three-dot menu → Import bookmarks.
• Repeat in the other direction every time either side changes. This is the part that stops happening.

The other option: give the links a home outside the browser

If the links live in your account rather than in a browser profile, the question of which browser you are in stops mattering. In Linksley you sign in to the extension in Chrome, then sign in to the same account in Firefox, Edge or Opera, and both show the same boards, the same categories, the same links. Save a page from a right-click in Firefox and it is on the board in Chrome. There is no export step, because there is nothing to copy.

The extension also handles your bookmark bar directly: you can mirror a board to the bar in each browser and restore it, so the bar you rely on in Chrome can exist in Firefox without you rebuilding it by dragging.

The honest limitation: there is no Safari extension, and no mobile app. If Safari is your main browser, this will not be your answer — and if you genuinely only use one browser on one machine, that browser's own sync is already enough.

What to do with the bookmarks you already have

Do not start empty. Export the HTML file from whichever browser has the best version of your bookmarks, open Import & export in the Linksley sidebar, and drop it in — every folder becomes a category on a new board. Then do the same for the second browser and merge what is worth keeping; most people find half of it was dead anyway.

After that, pick one place to save into. Two systems running in parallel is how you get the duplicate mess back. If you want the structure to hold, read how to organize bookmarks before you import everything at once.