First, Type '''about:preferences#advanced'''<enter> in the address bar. Under '''Advanced, ''' Select '''Update. ''' [v56+] Type '''about:preferences#general'''<enter> in the address bar. Select '''Update. ''' Select '''Never Check For Updates.''' Also turn off '''Use a background service to install updates''' --------------- [https://support.mozilla.org/en-US/kb/install-older-version-of-firefox?cache=no Install Older Version Of Firefox] {web link} Be sure to read everything here. If you still want to downgrade, look under; '''I still want to downgrade. ''' Click the '''Directory of other versions and languages''' link. Look for the directory of the version that you want. But, remember that '''old versions may have security issues. ''' You should also check out [https://www.mozilla.org/en-US/firefox/organizations/ Firefox; Extended Support Release] {web link} [https://www.mozilla.org/en-US/firefox/organizations/notes/ ESR Notes] [https://www.mozilla.org/en-US/firefox/organizations/system-requirements/ System Requirements]

Am going to say all caps is rude and am sure you know internet etiquette. SO that being said and all Firefox Support are Volunteers that need to be treated with respect due to them for helping others and you......... Reason why was a forced update as has to do with the Intel and other chips and the security vulnerability that has been on the front page of every news site the last several days. Mozilla is doing it's part in mitigating any attacks with the update : *https://www.theinquirer.net/inquirer/news/3023893/opera-mozilla-vivaldi-and-more-rush-to-patch-spectre-and-meltdown-security-holes *https://www.cbsnews.com/news/spectre-meltdown-intel-arm-chip-security-flaw-computers-phones-at-risk/ *https://www.cbsnews.com/news/what-intel-amd-chip-flaws-mean-for-you/ Also there was Windows Updates released on the 4th to, and they are doing their part in also mitigating the situation. I hope you have checked your Windows for out of sequence update. Search out Intel this week for software patches for your chip, AMD has issues also, your cell phone, laptops, notebooks, everything. fyi: for the future : *https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles *https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer Did you look for the shortcuts that were in the Toolbar (I would guess Bookmarks Toolbar in Bookmarks in it's own Folder in there called Bookmarks Toolbar where you can drag them all back out again. So do not look like Chrome *https://addons.mozilla.org/en-US/firefox/addon/theme-font-size-changer/ *https://www.howtogeek.com/334716/how-to-customize-firefoxs-user-interface-with-userchrome.css/ http://techdows.com/2017/09/classic-theme-restorer-userchrome-css-modify-firefox-57-photon-ui.html https://github.com/Aris-t2/CustomCSSforFx/issues/1 https://www.accessfirefox.org/Theme-Font-Size-Changer.php https://www.userchrome.org/ https://www.accessfirefox.org/Firefox_Accessibility_Themes.php https://www.userchrome.org/what-is-userchrome-css.html http://kb.mozillazine.org/UserChrome.css https://github.com/axydavid/FirefoxUI/blob/master/README.md https://github.com/wilfredwee/photon-australis https://www.reddit.com/r/FirefoxCSS/ Note not all code in one place. Please let us know if this solved your issue or if need further assistance.

We will need a bit more information to help you. Could you explain what links you're referring to? How were they created? We also need to know which add-ons got disabled, and which version you had before upgrading. If you're not sure of the last one, you can check by going to '''Help > Troubleshooting Information''' then click '''Show Update History'''.