how to reverse the sort order of tabs in firefox?

Question

I need to print (to PDF) a large number (about 80) of tabs all at once, but in a specific order. The problem is that the tabs all got opened in the reverse order of what I want. Dragging them around one at a time is just too painful to contemplate, so I'm looking for a way to just reverse the order of all currently opened tabs. I have them already saved to their own folder so I can easily reopen them, but need to reverse their ordering.

I found some old and outdated plugins that claimed to allow for this years ago, but nothing that looked like it would work in FireFox today. Any suggestions on where to look?

Answer 1

Here is one way to reverse the sort order of Firefox tabs:

1. Set Firefox's homepage to currently opened tabs by selecting Use Current Pages in Preferences > Home
2. Copy the resulting string and paste it in new file, say, tabs.txt

3. Insert newline at the end of tabs.txt

   $ echo >> tabs.txt
   

4. Reverse the URLs order

   $ cat tabs.txt | tr '|' '\n' | tac | tr '\n' '|' > final.txt
   

5. Copy the contents of final.txt and paste it in Custom URLs field in Preferences > Home

6. Close all the currently opened tabs

7. In a new fresh tab click on Home button and you're done!

Answer 2

Based on @rootkea answer above, but slightly different. His answer won't work in windows since windows doesn't have cat command (I cannot write a comment so I chose write a complete answer). Reversing those urls can be done inside a browser with javascript.

1. Go to FF console: press Ctrl + Shift + K or use context menu -> Inspect Element and select tab Console.

2. Paste this code there and press enter (don't close console for now)

   let ta = document.body.appendChild(document.createElement('textarea'));

   Textarea appears stretched 100% horizontally at the bottom of the current page (if you do it right on this superuser's page). Textarea is needed for convenient work with special characters in a string with urls.

   It is possible to add some styling if you don't see the element. Enter this code to console

   ta.style.border = '4px solid red';

3. Set Firefox's homepage to currently opened tabs by selecting Use Current Pages in Preferences > Home

4. Copy the resulting string and paste it to textarea element, created before

5. Paste this code to console and press enter

   ta.value = ta.value.split('|').reverse().join('|');

6. Copy new string from textarea and paste it in Custom URLs field in Preferences > Home

7. Close all the currently opened tabs

8. In a new fresh tab click on Home button and you're done!

Answer 3

Maybe bookmarking all the tabs, and then reordering them in the bookmark folder. They should open in the order they are in the bookmark folder.