How can I get list of open tabs in firefox via a command line application

Question

I have a lot of tabs open in Firefox. After I close firefox and then run it again, the tabs are there, that's all right.

However, from time to time, Firefox crashes and my tabs are lost. I would like to somehow get the open tabs and backup the list to some file. Any ideas?

(With tabs in file I can also use git/svn/whatever to store them and optionally find some link 'that I saw in my browser but can't remember what it was'.)

What I got so far:

I'm able to get some urls, but that's doesn't seem to be exactly what I see in Firefox:

$c = ((gc c:\Users\..\AppData\Roaming\Mozilla\Firefox\Profiles\xfvj8vd5.default\sessionstore.js ) -join '')
$sess = [Jayrock.Json.Conversion.JsonConvert]::Import( $c.trim('()') )
$sess.windows[0].tabs | 
  % { $_.entries } | 
  % { $_.url } | 
  Select-Object -Unique

Please, don't tell me "use this addon or that addon". I really would like do it as I described.

Answer 1

Using the JSON module from PoshCode, this looks right (bear in mind: I tested this on Firefox 4, where the Tab Panorama results in "hidden" tabs, ymmv).

ConvertFrom-Json -File ~\AppData\R*\M*\F*\P*\*\sessionstore.js -Type PSObject -EA 0 |
Select -Expand Windows | Select -Expand Tabs | 
Where { !$_.hidden } | ForEach { @($_.Entries)[-1] } | 
Select Title, Url

All the * in the first line are just to make it short. Feel free to expand that to the full path if you care about the (milli)seconds spent searching.