Mozilla Firefox 49.0 Offline Installer (x86/x64)! [Latest] Download Mozilla Firefox 49 Offline Installer/Setup Windows MAC Linux [DOWNLOAD EVERY LATEST VERSION FROM HERE] Mozilla Firefox is a fast, light and tidy open source web browser.

Table of Contents • • • • • • • • • Try another browser To begin, try opening a website in another browser (such as Internet Explorer Safari Epiphany or Chromium). • If all other browsers cannot load the website, move on to the section.

• If the other browsers can load the website, skip ahead to the section. No browsers can load websites If neither Firefox nor your other browser can load websites, your problem is not in Firefox so you should seek help elsewhere. Includes these articles: includes these articles. • (Windows 10): and • (Windows 8): • (Windows 7): • (Windows Vista): • (Windows XP): You should also check the following: You should begin by checking the following: • Make sure your modem and/or router are both on and are not indicating errors. • If you are using a wireless connection, make sure that you are connected to the right access point. • Make sure your Internet security software (including firewalls, antivirus programs, anti-spyware programs, and more) is not blocking connections to the Internet. For instructions on how to configure these programs, see the article.

• If you use a proxy server, make sure that the proxy server can connect to the Internet. For instructions on configuring proxy settings in Firefox, see below. Firefox cannot load websites but other browsers can If Firefox cannot load websites, but your other browser can, follow the instructions below. Cannot load websites after updating Firefox If you were able to load websites until you updated Firefox, your Internet security software (including firewalls, antivirus programs, anti-spyware programs, and more) is likely preventing Firefox from connecting to the Internet. Some Internet security programs can block Internet access even when they are in a 'disabled' state. In general, you should remove Firefox from your program's list of trusted or recognized programs, then add it back. For instructions on how to configure these programs, see the article.

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Firefox connection settings If you connect to the Internet through a proxy server that is having connection problems, you will not be able to load websites. To check your.

• Click the menu button and choose Options. • Select the General panel. • Scroll down to Network Proxy and click Settings. • Change your proxy settings: • If you don't connect to the Internet through a proxy (or don't know whether you connect through a proxy), select No Proxy. • If you connect to the Internet through a proxy, compare Firefox's settings to another browser's (such as Internet Explorer - see ) (such as Safari - see ). • Click OK to close the Connection Settings window.

• Close the about:preferences page. Any changes you've made will automatically be saved. • Click the menu button and choose Options. • Select the Advanced panel. • Select the Network tab. • In the Connection section, click Settings. Pdf

• Change your proxy settings: • If you don't connect to the Internet through a proxy (or don't know whether you connect through a proxy), select No Proxy. • If you connect to the Internet through a proxy, compare Firefox's settings to another browser's (such as Internet Explorer - see ) (such as Safari - see ). • Click OK to close the Connection Settings window. • Close the about:preferences page. Any changes you've made will automatically be saved.

DNS Prefetching is a technique Firefox uses to speed up loading new websites. To disable DNS Prefetching: • In the, type about:config and press Enter Return.

• The about:config 'This might void your warranty!' Warning page may appear. Click I accept the risk! To continue to the about:config page.

• Right-click Hold down the control key while you click in the list of preferences, select New, and then select Boolean. • In the Enter the preference name field, enter network.dns.disablePrefetch and click OK. • Select true when prompted to set the value and click OK.