There are mainly two major reasons for wanting to disable JS and we will briefly talk about each of them before we move on to disabling JS.
Now, let's continue with disabling JS in Firefox.
The second great privacy protection add-on for Firefox is Ghostery, which focuses on privacy, protection from threats and browsing speed. It offers a high level of control for scripts and trackers and allows you to block or enable each resource individually or by site level.
TIP: Here are some great Chrome extensions if you are also using Chrome browser during your design & development work:
12 Must-Have Chrome Extensions for Web Developers
10 Must-Have Chrome Extensions for Web Designers
More Firefox Tips
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