Hi I am going to edit your question as we try to keep things family friendly around here. We update Firefox monthly with new features and fixes, but sometimes an issue arises that needs to be fixed promptly. We try to avoid this but in respect of the update that you have just received, if we had not done this some websites would have failed to open. We do not update Firefox daily and I really hope that you do not risk your life to turn updates off. If you go to '''about:preferences#general''' in the address bar and scroll down to '''Firefox Updates''', you can change the update settings to '''Check for updates, but let you choose to install them'''. Alternatively you can use a policies.json file to turn off updates. This is more technical but you should be able to follow this support article: https://support.mozilla.org/en-US/kb/customizing-firefox-using-policiesjson To turn off updates, change the "BlockAboutConfig" in the code for "DisableAppUpdate". It is worth mentioning that Firefox is a browser that is not based on Google's Chromium engine. I hope that this helps.