Even the worlds most reliable web browser Firefox keeps freezing sometimes for various reasons. One of my subscribers told me that newly updated Firefox 9.4 keeps crashing when it opened. Sometimes it keeps crashing at startup before even visiting a website. Last week I also experienced it after updating my Firefox to a newer version. First thing I did is simply rolling back to the previous version. But still there was no luck. So in this article, as a computer engineer I am going to tell you how to fix these annoying Firefox freezes and crashes easily using a step by step checklist.
If your Firefox hangs…
- When its start-up.
- When visiting a webpage.
- When downloading something.
- When uploading an image or video.
- When watching an online video.
- When trying to save or copy something on a page.
Then you will be able to fix your browser with following steps.
Possible Causes for Firefox Crashes
Here I mention you all possible causes for your Firefox to run slow. It is a checklist. You are just reading the following tips one by one and applying them to Firefox at the same time. So you don’t need to read the whole stuff on this page. Ok, lets start.
Unnecessary or Incompatible Add-Ons
Having lots of unnecessary add-ons and plug-ins can slow down your browser significantly. Just click on Add-ons on the Firefox menu and navigate to 2nd tab. You will get a new window like following. There you can see I have already disabled so many incompatible add-ons on my Firefox. Just disable them.
Now click on 4th tab to see the plug-ins currently used by Firefox. In the following screenshot you can see there is a plug-in named ClickPotatoLite. It is an adware program used by companies to serve ads while we are browsing the web. So it is really unnecessary thing. So I disabled it.
You should try your best to avoid these kinds of programs. Now you may be thinking how to detect these types of plug-in in Firefox. It is easy. If you are seeing some plug-in which is not relevant to programs currently installed on your computer in any way, it can be definitely an adware. So try disabling it and restart Firefox to see if it solves the problem.
If you have enabled automatic updates, Firefox checks its server each time you visit a website. So if your Firefox running slow, this one also might be the problem. As the following screenshot go to Options > Advanced > Update and uncheck all three options.
Invalid Proxy Configuration
When installing some programs (device drivers), they automatically change proxy settings in web browsers. As same as above, go to Options > Advanced > Network and click on the Settings button. You will see a window like following. If it already configured to access internet using a manual proxy configuration, simply choose No Proxy option to allow Firefox to access internet directly.
Heavily Corrupted Registry
If Firefox still keeps freezing after trying all above steps, the system registry hives may be corrupted. Corrupted registry files can cause a variety of reasons. When programs are installed and uninstalled, the registry tends to get cluttered over time with broken, obsolete and corrupted registry entries. A corrupted Windows registry can be the root cause for overall slow PC performance including Firefox crashes. However, the registry can easily be cleaned of corrupt registry entries by using a good registry cleaner. I personally like Wise Fixer because it can fix system registry based on operating system. So you will never face a problem like removing important system files. You can download it from here. In most cases, that will fix the problem and you will be able to use your favorite browser Firefox at an amazing speed.
These tweaks have worked for me and hope you also find this post useful. If you have your own tips to fix Firefox freezing problem, please share them with us in the comment section.