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Why are there no previous versions available Windows 10?.How do I uninstall Windows 10 and go back to previous version?.How long after an upgrade to Windows 10 is the rollback to a previous version available in the Settings app?.How do I restore a previous version of Windows?.It is therefor usually not a good idea to download and install an old version.For a limited time after upgrading to Windows 10, you'll be able to go back to your previous version of Windows by selecting the Start button, then select Settings > Update & Security > Recovery and then selecting Get started under Go back to the previous version of Windows 10. This is done to protect users from downloading outdated, insecure or unstable versions of a software. The official website that provide downloads of Firefox and Thunderbird only offer the latest version of the programs for all supported operating systems. There isn't any other version of firefox on google play store. I think maybe it's because my cell phone is old. I search google play store and it says that this version of firefox is not compatible with my cell phone. Hi, I am trying to download and install firefox on my cell phone (T mobile Comet). Don't forget to completely remove Firefox and any Firefox plugins you have installed, before installing the old version. To download an old Firefox version, simply open the above link in your web browser, find the version that you want to download and install, and then download its files by clicking on the appropriate link. While there are rumors regarding the idea of shortening this cycle to only five weeks, these won’t happen too soon. The seventh cycle of development confirms the rapid release schedule adopted by Mozilla this year. Six weeks after the release of Firefox 6, Mozilla officially released the new next version for Firefox.
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