Tab Session Manager auto-save stopped working on Google Chrome on Windows

[echawkes]

Short description

I've been using Tab Session Manager to auto-save my tabs for years. Recently, it stopped working.

Steps to reproduce

1. Start browser with clean profile
2. Install Tab Session Manager

Expected result

Actual result

I recently enabled Debug logging on the settings page. Where can I find the log?

I spent some time trying to follow the directions in
https://github.com/sienori/Tab-Session-Manager/wiki/Q&A-How-to-use-debug-mode
but Chrome seems to have changed their UI.

I eventually found something that looks like an error, so I took a screenshot

I got the screenshot from the console pane on
chrome-extension://iaiomicjabeggjcfkbimgmglanimpnae/options/index.html#settings

Platform information

• Platform (OS):
• Version of browser:
• Version of Tab Session Manager:

Dell XPS-8940
11th Gen Intel(R) Core(TM) i9-11900K @ 3.50GHz 3.50 GHz
32.0 GB (31.6 GB usable)
64-bit operating system, x64-based processor

Windows 10 Pro
22H2
7/‎9/‎2021
19045.5011
Windows Feature Experience Pack 1000.19060.1000.0

Google Chrome
Version 129.0.6668.101 (Official Build) (64-bit)

Tab Session Manager
Version 7.0.1　Backers

Additional context

On October 6 or 7, Dell sent me a message about needing to update my BIOS, so I went to the Dell Virtual Assist page, and updated the BIOS and all my drivers. Then, I rebooted, which caused Chrome to update to the latest version. My problems started soon after that.

The last session that was regularly auto-saved was 2024-10-07 19.17.26 which is almost 7 days ago.
I have it set to save every 15 minutes. Looking at the list of sessions saved, that seemed to work well right up until Oct 7, but it doesn't any more.
I have 630 sessions saved. I have it configured to keep the last 1000 sessions.

I was able to manually save a session using the tab session manager page in the browser - at the bottom of the page where my sessions are displayed. That still works. Also, I can still restore from old sessions.

[imtrobin]

Same here, on Edge and Maxthon

[WillPresley]

Just wanted to chime in that this also is happening to me on Chrome/Windows. My sessions were auto-saving up until Oct 16th sometime.

[PRGeno]

"Save the session when exiting browser" stopped working recently on Firefox (currently on 131.0.3)

[NeloBlivion]

This happens because, for some reason, it's possible for the extension to save null as a session, completely breaking the extension. Steps to fix:

1. Export All Sessions
2. Open in a text editor and look for a null entry - delete it
   
3. Delete all sessions on the extension, then import your updated file

IF EXPORT IS NOT WORKING (if you have too many saved sessions, browser seems to block it?)

1. Open devtools (F12) on the export page and navigate to Console
2. Click export, you'll probably see something like this
   
3. Right click the list and hit Copy Object
   
   This is identical to an exported JSON, so you copy it into a text editor and do the same steps as above to remove the null entry.

[elig0n]

I'm using Firefox and both regular & browser exit auto saves stopped working on 24th of October.

This happens because, for some reason, it's possible for the extension to save null as a session, completely breaking the extension.

I did not spot nulls in my exported sessions JSON file.
I also spotted no debugging errors whatsoever when exporting or importing my 300+ sessions.

Eventually I backed up everything, reinstalled the add-on and reloaded all the backups and then all auto-save functionality resumed working.