My morning routine begins with a cup of good coffee, booting the PC and firing up the email client Thunderbird to check the past 10 hours of emails, and the web browser Firefox. Firefox behaved strangely this morning, it simply would not load properly but hung whenever I s started it on the system.
The tabs of the websites that were open in the last session were showing up but they were not loading at all. Killing the Firefox process and restarting the PC did not help.
Since this is not the first time Firefox acted up I started to troubleshoot the issue by disabling all add-ons to see if an add-on was the culprit. Firefox ran fine with no add-ons running in the background so that I knew that it was add-on related.
Pro Tip: To start Firefox's Safe Mode, hold down the Shift-key on your keyboard before you click on the Firefox icon to start the browser.
I then enabled one add-on at a time to see which one was causing the hangs.
I found out that the password manager add-on Last Pass was the problem. I then remembered that I had the same problem about a month ago (see Fix Firefox With Last Pass Not Responding), and checked the Last Pass forums for news on the topic.
Some users were reporting problems with Last Pass, most of them were running a 64-bit edition of Windows 7, just like I do.
The solution was simple. Download the non binary version of the Last Pass add-on, and drag and drop it into the Firefox interface to install it. You need to disable the Last Pass add-on first so that the web browser starts up normally.
I'm not sure what the problem is exactly but the Last Pass guys should consider fixing it, as it is an annoying experience to witness the freezes every time the add-on updates automatically in Firefox.
One of the things that may play a role here is that the company does not seem to update the add-on on the Firefox website as often as it is updated on the LastPass website.
A good place to start the troubleshooting is the LastPass website therefor to check if you are running the latest version of the extension or if a new one has been released that has not been made available on the Mozilla website and as a consequence not via the browser's automatic update feature.
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Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.