Congratulations, you have now ensured that your copy of Firefox is up to date.In normal circumstances, Firefox will keep itself up to date automatically - if for some reason Firefox didn't update itself, please speak to your IT Support team for further help.
Excepted from this license are code snippets that are explicitely marked as citations from another source.
The MIT License (MIT) Copyright (c) 2011-2017 makandra Gmb H Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
If those are the only lines in the file, you may delete the entire file instead.
You may create a new profile alternatively which corrects the issue as well.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.The preferences of importance are: If you find some or all of them listed in the file, you have found the source for the automatic update failure.The easiest way to resolve the issue os the delete the four lines in the file.This is done to keep the browser from patching certain vulnerabilities, likely to keep the system vulnerable to attacks or exploits.(via Sören)Now You: Have you configured your browser to update automatically?In most cases - actually, unless you have specifically disabled it - Firefox will check for updates every couple of hours and automatically update itself.