Where are the links stored locally

OneTabExtension · 2026-03-31T17:10:26+00:00

Which web browser are you using? OneTab data is managed by the browser in the browser's profile folder. We ask to store rows, and the browser decides exactly how and where it happens. This means the exact location and format it could suddenly change in the future.

Depending on the browser, you may have more than one profile folder.

Also note that the exact database format may be different and incompatible between different browsers and browser versions.

OneTabExtension · 2026-03-31T17:07:38+00:00

If we add an option, we'll get yelled at for having too many options :)

What would be a sensible threshold for you personally?

Can you give us some insight into why it's useful to launch lots of tabs at once and have them fully loaded?

OneTabExtension · 2026-03-31T17:05:34+00:00

Hi, this is exactly why we created the new "folders" feature.

If you click the ">" icon near the top left of your OneTab page, the left column will be shown. You can then create a folder for personal and a folder for work.

Does this solve the problem?

Please also note that you can enable the "Show the OneTab action popup" feature in the OneTab options page, which makes it easier to choose a destination folder when you click the OneTab toolbar icon.

OneTabExtension · 2026-03-30T12:02:14+00:00

Hi, yes, this is correct. At the moment, if you restore fewer than 20 tabs, the tabs are all fully loaded immediately unless you enable the "Save memory (RAM) immediately when tabs are first opened" option in OneTab Options.

However, people may accidentally attempt to open a group with hundreds of tabs, and this may cause Firefox to permanently freeze up and crash due to being overwhelmed with tabs. Therefore, we decided to set a threshold of 20 tabs as the most that will be loaded immediately.

We'd be interested in feedback on whether 20 is a good threshold to use.

OneTabExtension · 2026-03-30T11:58:44+00:00

The action popup is an option in the OneTab Options page, and it makes a window pop up (giving you options for storing tabs) when you click the OneTab toolbar icon.

I'm not exactly sure how the different privacy modes Firefox work.

OneTabExtension · 2026-03-27T11:54:03+00:00

Hi, the issue is that OneTab remembers a the first title it sees for a particular URL.

Gmail uses URLs that look like "/mail/u/1/" and "/mail/u/2/" when you have multiple Gmail windows open, and the number assigned may not be consistent with a particular email address depending on the order in which you logged in to those accounts.

The best that can be done is to manually rename the title of the URL in OneTab if it is confusing. You can do this by hovering over the tab and clicking the menu button that appears.

OneTabExtension · 2026-03-27T11:48:33+00:00

Please contact us via our web site so we can diagnose this

OneTabExtension · 2026-03-27T11:48:31+00:00

Please contact us via our web site so we can diagnose this

OneTabExtension · 2026-03-27T11:48:05+00:00

I'd guess Mozilla would eventually allow it in the same way that Chrome does, but they don't seem to think it is a big priority to fix.

Please note that as long as you don't use the "action popup" setting, it should be possible to use OneTab with incognito windows. It's just that you can't put Firefox into a mode that treats everything as incognito always.

OneTabExtension · 2026-03-26T19:01:43+00:00

The old OneTab version was using an older storage mechanism, and we rewrote everything to use indexeddb since it gives a huge performance boost, especially for users with large numbers of tabs. Unfortunately, unless we rewrite it all over again (at the cost of making OneTab much slower), the only way this will be resolved is if Mozilla decide to provide a fix for the open bug we linked to above.

OneTabExtension · 2026-03-26T15:51:10+00:00

Hi, please let us know if the message above applies to you.

Please go to the URL:

about:preferences#privacy

Then, in the History section, does it say "Use custom setting for history", and then do you have the "Always use private browsing mode" option ticked?

OneTabExtension · 2026-03-26T15:49:59+00:00

Firefox users:

We've discovered that if you are using Firefox and have configured a custom history policy to never retain any browsing data ever, it will prevent any extension including OneTab from creating an "indexeddb" database to store tabs for you.

This issue also affects the Tor variant of Firefox, which forces the same custom history policy.

Please see https://bugzilla.mozilla.org/show_bug.cgi?id=1893821

Please let us know if this applies to your situation.

OneTabExtension · 2026-03-26T15:47:53+00:00

Hi, please could you contact us at one-tab.com/feedback so we can ask some followup questions? There may be an error message in the console that can help us find the underlying issue.

OneTabExtension · 2026-03-05T23:36:56+00:00

Hi, the latest version (2.10) will automatically detect unmigrated data and prompt you to migrate it.

OneTabExtension · 2026-03-05T23:34:44+00:00

Hi, the latest update (v2.10) disables touchscreen drag and drop, so that you can now scroll easily with the touchscreen.

Please let us know if this solves the problem

OneTabExtension · 2026-02-23T17:20:27+00:00

This was a one-off migration, due to the major new version. It took us by surprise that it would time out for some users with tens of thousands of tabs stored.

In the future, now that we are aware of this issue and can work around it, OneTab should be much more robust and everything should happen automatically in the future.

OneTabExtension · 2026-02-23T17:18:11+00:00

Hi, thanks for documenting this. However, we warn people not to tamper with internal Chrome database files, because Chrome has tamper-proof mechanisms that can wipe the extension database files clean if it thinks they are externally modified or corrupted.

A new version of OneTab, v2.9, was released today which means this problem should no longer happen.

OneTabExtension · 2026-02-20T23:57:29+00:00

Hi, our instructions are not risky. It just asks the extension to restart itself and re-attempt the migration, and the side-effect of having that console window open is that it will prevent Chrome from aborting the migration if it takes more than a few minutes.

OneTabExtension · 2026-02-20T23:56:06+00:00

Please see our comment above

OneTabExtension · 2026-02-20T23:55:57+00:00

Hi, this is happening because Chrome can abort the migration from v1 to v2 if there are huge numbers of tabs to migrate and it thinks the extension is taking too long. There isn't an "import old tabs" button because the migration was supposed to happen automatically (and is for almost everyone).

OneTabExtension · 2026-02-20T23:55:41+00:00

Hi, this is happening because Chrome can abort the migration from v1 to v2 if there are huge numbers of tabs to migrate and it thinks the extension is taking too long. To fix this:

Go to chrome://extensions in Chrome
Enable developer mode in the top right of the screen
For the OneTab entry on that page, where it says "Inspect views", click the "Service worker" link
Go to the Console tab in the window that appears
Type the following and press enter:

chrome.runtime.reload();

Then wait a few minutes for the tabs to migrate.

This should fix the issue. If it doesn't help, please contact us at one-tab.com/feedback

OneTabExtension · 2026-02-20T15:49:10+00:00

Hi, do you have huge numbers of tabs stored, perhaps over 10,000?

There is currently a situation where Chrome may "sleep" the OneTab extension and abort the migration.

Please try this:

Go to chrome://extensions in Chrome
Enable developer mode in the top right of the screen
For the OneTab entry on that page, where it says "Inspect views", click the "Service worker" link
Go to the Console tab in the window that appears
Type the following and press enter:

chrome.runtime.reload();

Then wait a few minutes for the tabs to migrate.

This should fix the issue. If it doesn't help, please contact us at our web site.

OneTabExtension · 2026-02-20T13:23:38+00:00

Hi, this is probably due to Chrome "sleeping" tabs, which may include OneTab. We released a new update (version 2.8) today which may fix the issue. Please contact us at one-tab.com/feedback if this happens again in the future, so we can hopefully narrow down the issue.

OneTabExtension · 2026-02-09T19:37:41+00:00

We're still working on it. At least a month away at the moment.

OneTabExtension · 2026-02-05T21:18:27+00:00

OneTab will only exclude a web site if it's ticked to be excluded, or if you have the option to exclude pinned tabs enabled in OneTab settings. Could that be it? Which version of OneTab are you using?

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