700980 - Snippet on the about:home page seems to causing problems with the Restore Previous Session button not working

Status: RESOLVED DUPLICATE of bug 682944

(Firefox :: Session Restore, defect)

Description

[Kadir Topal [:atopal]]

Cor-el posted the following in the support forums:

"I've seen a lot of problems reported with the Restore Previous Session button on the about:home page not working and I see this issue myself as well.

It looks that it is caused by the large snippet that currently has a Persona preview in it.

    https://snippets.mozilla.com/1/Firefox/8.0/20111104165243/WINNT_x86-msvc/en-US/release/Windows_NT%206.1/default/default/ 

Deleting the snippets key in chromeappsstore.sqlite key with the SQLite Manager extension works for me.
Deleting chromeappsstore.sqlite seems to cause a problem because Firefox doesn't create new keys unless I reset the browser.startup.homepage_override.mstone to the default and that causes the problem to reappear and browser.aboutHomeSnippets.updateUrl needs to be set to an empty string to prevent that."

-- https://support.mozilla.com/en-US/forums/contributors/707775

Comment 1

[Marco Bonardo [:mak]]

(In reply to Kadir Topal [:atopal] from comment #0)
> It looks that it is caused by the large snippet that currently has a Persona
> preview in it.

may be conflicting with the page contents/handlers, the snippet contents should be fixed.

> Deleting chromeappsstore.sqlite seems to cause a problem because Firefox
> doesn't create new keys unless I reset the
> browser.startup.homepage_override.mstone to the default and that causes the
> problem to reappear and browser.aboutHomeSnippets.updateUrl needs to be set
> to an empty string to prevent that."

yes, this is how it works, I don't think a user should manually delete a file from his profile folder as a solution, btw.

Comment 2

[Les Orchard [:lorchard]]

mkelly should know more about the persona preview snippet

Comment 3

[Daniel Einspanjer [:dre] [:deinspanjer]]

Support issue http://support.mozilla.com/en-US/questions/892970#answer-271366 has the following work-around. Pasting it in here just in case someone sees the bug without seeing the support issue.

Reset the browser.startup.homepage_override.mstone pref on the about:config via the right-click context menu to the default on the about:config page.
Set the browser.aboutHomeSnippets.updateUrl pref to an empty string to prevent loading that snippet. Close and restart Firefox to make the changes effective.
To open the about:config page, type about:config in the location (address) bar and press the "Enter" key, just like you type the url of a website to open a website.
If you see a warning then you can confirm that you want to access that page.
Use the Filter bar at to top of the about:config page to locate a preference more easily.