Like all browsers, Firefox can crash from time to time, and sometimes it can happen for no apparent reason: what was right yesterday, or is wrong. So easy. Of course, the failure of these characteristics, so general, can be caused by various factors.

Fortunately, Firefox has mechanisms to help us find the source of these problems, and even make a clean slate if a solution is missed. These are very basic features that have always been there but that you may not be aware of… and that’s it, we’ll show you where they are and how to use them in case you ever need them. point.

Disable customization in Firefox

First, and in the event of an unexpected failure, the first, fastest, easiest, and safest thing to do is to disable any customization you’ve applied to Firefox, including extensions, themes, and settings. Of course, doing this manually, one at a time, can be quite a pain depending on how much redundancy is worth which hand you put into the browser. Nothing happens because it can be done once and with recovery guarantees.

For this action, Firefox has troubleshooting mode which can be used to restart the browser after temporarily disabling all “extensions, themes and customization settings”. You can find this option in “Menu>Help>Troubleshooting Mode…”.

After restarting the browser, all the listed items will return to their default settings, but your data will remain as it was, so you can quickly check whether the browser still crashes or not. Once you close it and reopen it, all your customizations will be there again. The only thing about this method is that it goes all at once.

If Firefox passes fine in troubleshooting mode, it will touch you, so yes, check the elements that are likely causing the failure one by one. The best thing to do is usually to come back with regards to extensions, themes or modified options.

Reset Firefox

The fact is, as already pointed out, depending on how customized you are with Firefox, finding what’s going wrong can be torture. For this, the browser has a much more powerful option: *more troubleshooting information, available in the same Help menu. In this case, however, the matter is more delicate.

This “troubleshooting information” is purely technical in nature and not available to everyone, but we’re not interested in what we’re going to do, which is try and reset firefox to the factory state, i.e. to the default configuration.

Before, needless to say, you need to keep your browser data safe, which is enough – generally speaking – to have everything synced with your Firefox account and log out before proceeding to avoid unforeseen events. Once Firefox is reset, you sign in again and sync your data so you have everything as before.

What if something still goes wrong? That being said: you’ll have to go step by step until you find out where the problem is: disabling extensions and themes, leaving options you’ve modified to default, clearing history and other accumulated data… Although it’s not usually the way to go far.