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I have been using Firefox 25 from past 2 months and i downloaded firefox nightly yesterday and i used it for yesterday. Today when i open the firefox either the

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Hello Support Mozilla,

I use firefox 25 on windows 8 PC and I am using this browser from past 2 months and yesterday I downloaded firefox Nightly and then used it as a browser. Today when I start opening browser then its not opening. Does the both firefox and nightly wont work in a single PC ???? I could use Internet Explorer & Google Chrome browsers, but the firefox browser is not loading.

Hello Support Mozilla, I use firefox 25 on windows 8 PC and I am using this browser from past 2 months and yesterday I downloaded firefox Nightly and then used it as a browser. Today when I start opening browser then its not opening. Does the both firefox and nightly wont work in a single PC ???? I could use Internet Explorer & Google Chrome browsers, but the firefox browser is not loading.

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Thanks for all your replies i was using IE because of that issue and it was damn slow to open this sites. Today my problem is resolved. Actually it was the problem with my proxy and it was given a proxy. When i removed the proxy, it started loading & running websites. Thanks for all your answers and those both links were very useful.

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Hello I would recommend you give the following a read

How to run firefox and nightly

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do you get any error messages?

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You need to take care to use separate profiles when using multiple versions of Firefox.

We will need more information about your problem but mean while maybe this general information will help. Besides telling us about any error messages please also say exactly what you have tried; to fix the problem, and whether you now have multiple Firefox profiles set up.

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Chosen Solution

Thanks for all your replies i was using IE because of that issue and it was damn slow to open this sites. Today my problem is resolved. Actually it was the problem with my proxy and it was given a proxy. When i removed the proxy, it started loading & running websites. Thanks for all your answers and those both links were very useful.