Bring your data

Acira can bring your bookmarks and history from the browser you use now. The other browser is not changed. Sign-ins do not come across, but Acira helps you sign back in and bring your passwords from a file you export.

What you can import from

Source	What can come across
Chrome, Edge, Brave, Helium	Bookmarks, browsing history, supported browser preferences, and an inventory of installed extensions
Firefox, Zen	Bookmarks and browsing history
Arc	Favorites, Spaces (as workspaces), bookmarks and browsing history
A bookmarks file (HTML)	Bookmarks, from any browser that can export them

What a particular profile offers depends on what is in it. Acira shows what it found before you import. The list of browsers is the same on Windows and Mac.

Import from another browser

The first time you use Acira, the import step comes first in setup. You can also import later.

Open Settings › Import & export. Under From another browser, choose Find browser profiles. Acira looks for browsers on this PC (Finding browser profiles…).
Under Available browser profiles, choose the profile you want. Use Change profile to pick another. A profile with nothing Acira can read says No supported data available.
Under Choose what to import, tick the kinds of data. Each shows how many items it found.
Choose Import selected data.

If Acira finds no browsers, it says so and points you to the bookmarks file option below.

Kind	What it does
Favorites (Arc)	Adds them to Favorites, at the top of the sidebar unless you moved Favorites to the bottom. Up to 24.
Spaces as workspaces (Arc)	Each Space becomes a workspace with its name, emoji and color. Its pinned tabs stay pinned. Each folder becomes a collapsed tab group inside the workspace. A profile holds up to eight workspaces, so Spaces beyond that become collapsed tab groups. Acira imports at most 200 tabs in all, and they load only when you open them.
Bookmarks	Adds your bookmarks with their folders. For Arc, the pinned tabs and folders arrive in a folder called Arc, with one folder for each Space.
Browsing history	Adds up to the 50,000 most recent visits to your history. If the history cannot be read, Acira says so with a warning.
Browser preferences	Copies the preferences Acira supports, such as whether the bookmarks bar is shown. Nothing else.
Extension inventory	Saves a list of the extensions you had. It does not install them. Acira says Extensions have not been installed. Installing is a separate choice. See Extensions.

Import into a new profile

In setup, each browser profile can go into This profile or a New profile. Acira then makes a profile with that browser profile's name and color. See Profiles.

After the import

The result says Import complete or Import finished with issues, and lists each kind as Imported, Inventory saved, Could not import or Unavailable, with counts of items and folders. Items Acira skipped are counted.
Choose Import more data to import another kind or from another profile.
Importing again does not duplicate what already came across. Setup then says nothing new.
If you import during setup, a message offers Undo when the browser opens.

Undo an import

Choose Undo import right after the import, or open Settings › Import & export › Import batches and choose Undo this import next to the batch. Undo removes the data from that import. Bookmarks you added yourself are kept. Acira says Import undone.

Import or export a bookmarks file

Use these under Import and export files in Settings › Import & export.

Control	What it does
Import bookmarks HTML…	Choose an HTML bookmarks file exported by another browser. Acira says how many bookmarks it imported.
Export bookmarks HTML…	Saves your bookmarks as an HTML file that other browsers can read
Export profile JSON…	Saves this profile's bookmarks, supported settings and, if you tick Include this profile's history in JSON export, its history

Choosing the wrong kind of file shows a message such as Select a bookmarks HTML file and try importing again.

Sign-ins and passwords

Cookies and sign-ins are never read from another browser. Browsers lock them so other apps cannot take them. Passwords come only from a file you export yourself. After an import, two helpers appear in Settings › Import & export.

Sign back in to your sites

A short checklist of the sites you used, taken from your imported bookmarks and history. For each site you can choose Sign in (it opens the site), then mark it signed in, or choose Not now to skip it. A progress count reads, for example, 3 of 12 done. Choose Dismiss to hide the list and Show the list to bring it back. Sites that Acira can autofill from your passwords show Autofill ready.

Bring your passwords

Choose the browser you are leaving: Chrome, Edge, Brave or Firefox. Acira shows the steps to export your passwords from it.
Export your passwords as a .csv file there. The browser asks you to confirm with your device password.
In Acira, choose Choose the file…. Acira counts the passwords, for example 12 passwords found, 9 new.
Choose Import 9 passwords.
Choose Move file to Recycle Bin. The exported file holds every password in plain text.

Passwords already in Acira are not added twice. See Passwords and passkeys.

Limits

Import and export are not available in private browsing. Switch to a regular profile.
Acira reads a Chrome-family profile named Default or Profile N, and Firefox and Zen profiles it finds in their usual places. A profile in a custom folder is not found. Use a bookmarks file instead.
If a browser's files are locked, close that browser and try again. Acira may say Couldn't read {browser}'s bookmarks right now.
A single import takes up to 50,000 bookmarks, with folders up to 64 levels deep. A browser data file larger than 32 MB is refused, and Acira says to use an exported bookmarks file instead.
Acira does not copy cookies, saved passwords or sign-ins from another browser, and it does not install extensions for you.
Acira has no account and no sync. Imported data stays on this computer.

Last updated November 8, 2026