Firefox – How to make the new tab page be blank on Firefox 13

I had the same issue! Here's a solution to the problem:

You probably have Tab Mix Plus and Greasemonkey extensions, right? Well, a few hours ago Greasemonkey updated their extension and there seems to be a conflict between new GM and TMP. Just downgrade your GM to the previous version and everything will go back to normal.

The latest version of Greasemonkey also has a work-around for the issue.

I don't use it personally, but it is said that NoScript can handle it:

Attempt to fix JavaScript links ( enabled by default): this means that NoScript will try to turn javascript: links into normal ones on untrusted sites as you click them, improving usability of the most unfriendly pages.

There used to be some standalone add-ons for this like Smart Middle Click but they were abandoned or/and deleted from addons.mozilla.org. I used to use Smart Middle Click, it is compatible with Firefox up to 3.6, haven't checked in newer versions. It is now removed from the web, but I recovered it from my disk.

To try if it works, unzip the contents to C:\Documents and Settings\<username>\Application Data\Mozilla\Firefox\Profiles\<profileID>.default\extensions and in about:config add preference extensions.CheckCompatibility.6.0 = false, or override version info in install.rdf file after unzipping.

However "fixing" JavaScript link is very hard in general (I mean creating a script that would work in all occasions), it's much easier to do it per-website (see how the website behaves and provide website-specific fixes as a GreaseMonkey script for instance).

It is a sign of bad JavaScript writing if some links can not be opened via middle click, if you have some particular websites that you visited often and can't make it work, you could try to contact their webmasters to indicate it.