OneTab is my favorite Chrome extension. I regularly back up OneTab data in Windows 7 following this blog post:

OneTab: Finding where your tabs are stored

But today, I can't find OneTab data in that path.

Is anything updated in Chrome or OneTab? If so, where is the OneTab data?


6 Answers 6


This seems to be the latest place where the files are located:

C:\Users\yourname\AppData\Local\Google\Chrome\User Data\Default\Extensions\chphlpgkkbolifaimnlloiipkdnihall

  • In my case (Win 10) the folder is located at: C:\Users\<yourname>\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\chphlpgkkbolifaimnlloiipkdnihall and inside there is a leveldb database with OneTab data.
    – gibbone
    Apr 3 at 19:07

Your OneTab data can be found at C:/Users/<Username>/AppData/Local/Google/Chrome/User Data/Default/Local Storage/leveldb. Just replace <Username> with your user's username.

I also created a Python script to automatically back up your OneTab data.


More information found in the link above.


On (Linux Mint) Linux, the path to the OneTab data folder appears to be:

/home/<user>/.config/chromium/Default/Local Extension Settings/chphlpgkkbolifaimnlloiipkdnihall


/home/<user>/.config/google-chrome/Default/Local Extension Settings/chphlpgkkbolifaimnlloiipkdnihall

Copying this folder from Chromium to Chrome (after Chromium access to the Chrome sync API was recently disabled) adds all the titles and options associated with OneTab links.

  • 1
    this is an extremely dangerous answer. I glanced in here, relevant data seemed to be in 00003.log. I copied that file over, while making the equivalent file in my new install named 00003.log.bak as a sibling file. When I then opened chrome, I did indeed have my onetab... but lost all my current tabs. I saved a onetab export, figuring I'd go grab the old file and get it back... and chrome or onetab had deleted my .bak file. tabs gone forever. :/
    – Kyle Baker
    Sep 18, 2021 at 10:09
  • @KyleBaker, that stinks. When I performed the copy, I had already installed OneTab on Chrome and so I copied that folder from Chromium settings to Chrome settings without altering Chromium in any way. There was no data loss for me since I was just seeing if Chrome would recognize the OneTab data from Chromium. Perhaps this has changed? Copy-paste was always a work-around for a feature missing from OneTab (that is, Titles included in the export function). I didn't try to edit any file inside the settings folder, since Chrome has a habit of rewriting data and I had no idea what format it was.
    – R J
    Sep 20, 2021 at 1:19
  • yeah, was my girlfriend's computer. she'd been using the new install for a while, suddenly wanted her old onetab stuff. was pretty frustrating for her, she lost hours of research.
    – Kyle Baker
    Sep 20, 2021 at 20:58

On the Mac, the location is now in a database file located in your users folder:

~/Library/Application Support/Google/Chrome/Profile 1/Local Storage/leveldb/ files here...

I am not sure if all the files here are dedicated to OneTab, but restoring the whole folder worked for me. You may need to check for other Profile folders, or perhaps the default instead of my "Profile 1" folder. A shortcut to the folder, open terminal and execute the command:

open ~/Library/Application\ Support/Google/Chrome/Profile\ 1/Local\ Storage/leveldb/

It looks like the path has changed since then.

Now, the localstorage file resides in ~/Library/Application Support/Chromium/Default/Local Storage (on Mac, but it's easy to guess the equivalent on Windows).

  • Mac OSX Ventura 13.0.1
  • Chrome 109.0.5414.87

I found OneTab's .ldb files located at:

~Library/Application Support/Google/Chrome/Default/Local Extension Settings/chphlpgkkbolifaimnlloiipkdnihall
  • Same answer has been proposed several times before.
    – Toto
    Jan 26, 2023 at 20:03
  • @Toto different path. most recently located in extension settings, not profile settings, and since .ldb files are not the easiest to parse, this information would have saved me 30 mins.
    – eschie
    Jan 26, 2023 at 20:08

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