I think control-u will do what you want. It does on mine.

Unfortunately, this does not present the source code. Instead, I get the following message:

Document Expired

This document is no longer available.

The requested document is not available in Firefox's cache.

   As a security precaution, Firefox does not automatically re-request sensitive documents.
   Click Try Again to re-request the document from the website.

Are you running Firefox in Private Browsing mode?

Is the cache (memory and disk) enabled and working if you check that on the about:cache page?

Is there any POST data or AJAX request send to get those pages?

You can try to disable automatic cache management and set a fixed size.

• Firefox/Tools > Options > Advanced > Network > Cached Web Content

For generated source including modifications made during and after loading by scripts in the page, there are a couple of tricks you can try:

(1) For the built-in source viewer: select the entire page (Ctrl+a) and then right-click > View Selection Source. You can click to clear the selection in the source viewer once it loads, as it can be annoying reading text that way.

(2) If you have a good syntax highlighting editor you want to use instead of the built-in source viewer: Ctrl+Shift+i to open the Inspector, right-click the html tag > Copy Outer HTML, then paste into a document in your editor.

Hi. Control-shift-i does nothing for me. Is there a different key combo for MacOSX? (I also tried Cntrl-Shift-i, Option-Shift-i, Cntrl-Option-I, Cmd-Shift-i -- no luck)

Hi errorprone, as you can see, the original poster was using Windows, so we focused on that OS.

You can look up keyboard shortcuts for Mac here:

https://support.mozilla.org/en-US/kb/keyboard-shortcuts-perform-firefox-tasks-quickly#firefox:mac

(I got to that page using the Help menu > Keyboard Shortcuts)

Also, they usually are listed on the menu so in this case, you should be able to find them on either:

• "3-bar" menu button > Developer
• (menu bar) Tools > Web Developer

Testing above in my 35.0, I have found highlighting the desired section or whole page(Cntrl-A), right click to View Selection Source .. . . an unreadable white page results with hidden text highlighted. Copy and paste that into Notepad and voila! There is source of page to the extent the author has allowed.

I would like to add that I think this to be a detriment. One of those "Let's fix what ain't broke" moves . . . my FF(35.0) still crashes all to often and they gotta mess with the View Source option . . . .

And to add salt to that wound wound, the dreaded IE (8.0.6.blah blah) displays when selecting View Page Source . .. . . tadaaaaa . . the page source code plain as day.

Perhaps an option in Settings to turn this useless feature on/off might be appropriate. If there is one, please tell me where. And default it to OFF.