1319750 - Error in Utils.jsm when restoring session

Status: RESOLVED WORKSFORME

(Firefox :: Session Restore, defect)

Description

[The 8472]

I'm seeing some issues with session restore lately, namely that some metadata for tabs is restored incompletely, e.g. the status of the faviconize tab addon.

I see the following error message in the browser console, which I assume is related:

> NS_ERROR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsISerializationHelper.deserializeObject]  Utils.jsm:94

It's referring to resource://gre/modules/sessionstore/Utils.jsm

>    let principal = serializationHelper.deserializeObject(principal_b64);

Comment 1

[Mike de Boer [:mikedeboer]]

Well, we did touch this code recently, but I'm not sure whether this is an issue with our code internally or an addon compat issue...
Is this caused by the Faviconize tab addon? Do you have any other addons installed that may cause this?

Comment 2

[The 8472]

> Is this caused by the Faviconize tab addon? 

possibly

> Do you have any other addons installed that may cause this?

I can also think of the session manager addon and tab groups which do session-related things or store state directly associated with tabs respectively.

Comment 3

[The 8472]

Now that I think about it, I've also been trying out the containers feature and added and removed a few user contexts with with about:containers

Comment 4

[Mike de Boer [:mikedeboer]]

Right! Well, I CC'd Cristoph already, who knows all about this, but he's on PTO for quite a while... n-i'ing him regardless.

Comment 5

[Christoph Kerschbaumer [:ckerschb}]

(In reply to The 8472 from comment #3)
> Now that I think about it, I've also been trying out the containers feature
> and added and removed a few user contexts with with about:containers

Sorry for the lag of response here. Any chance you could provide steps to reproduce then I can have a look at the problem. If you are using any addons, please also list them.

Comment 6

[The 8472]

I am no longer seeing the error message in the browser console and after closing and re-creating the tabs favoiconize tab works again. So maybe it was some legacy data in the session.