In Firefox, if you don't see the menu bar, press Alt. If you're unsure what browser version you're using, from the Help menu or your browser's menu, select About. If you don't see instructions below for your specific version or browser, search your browser's Help menu for 'clear cache'. If the instructions below don't exactly match what you see, you may need to update your web browser to the latest version.If this doesn't work, follow the appropriate instructions below. For desktop browsers, to quickly open menus used to clear your cache, cookies, and history, ensure that the browser is open and selected, and press Ctrl-Shift-Delete (Windows) or Command-Shift-Delete (Mac).But it turned out that the mobile FF didn't have about:config. So I'm 90% sure that if I can do the same with FF for Android, that will change its performance for the better. When I disabled IPv6 on the desktop Firefox last week, many of the pages suddenly started loading instantly bc my ISP, among many others in my country, still supports IPv4 only. But now with Mozilla Connect I can share my ideas and hopefully bring FF for Android to the same glory its desktop cousin already has. Since I was unable to send you feedback about that, I stopped using it.

I stopped using FF for Android 2 years ago because many pages simply won't load and hang in the middle of loading whereas the same pages open just fine and fast using Opera for Android. high level of customization was the only reason I started using Firefox back in 2006 and why I still prefer Firefox for the desktop to any other browser. Give about:config to Firefox for Android and let us customize it the same way we can customize the desktop browser.

About config firefox android