Try this : https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data and https://support.mozilla.org/en-US/kb/recover-lost-or-missing-bookmarks and https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles Mozilla did not have to ask your permission as you agree to a lot of things when you install any software. Please read : https://www.howtogeek.com/333230/why-firefox-had-to-kill-your-favorite-extension/ How about looking at these 2 URL's : https://www.howtogeek.com/333110/how-to-customize-firefox-quantum-and-remove-the-white-space-around-the-title-bar/ and The name is not descriptive enough : https://www.howtogeek.com/332449/whats-new-in-firefox-quantum/ More information will come out slowly. New extensions are being made and some older ones being updated that are tracked here : http://bit.ly/2j0Anlj If you have bookmarks on another computer or phone you can import them back into Firefox : https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer and https://support.mozilla.org/en-US/kb/import-bookmarks-html-file and info is already out for turning the tabs back to looking like they were. Only took 2 days. Once find your Bookmarks : Time, wait, do not judge to quickly . Please uninstall Shockwave Flash 26.0 r0 Flash Player Version: 27.0.0.187 Current Version https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) Note: Other software is offered in the download. <Windows Only> Please let us know if this solved your issue or if need further assistance.

I am not techie and don't want to have to go through all this stuff to get things back - don't have other devices. I just want to whine. I did find my bookmarks all jumbled up and on a scroll bar AFTER I have to click on bookmarks and then scrolldown. With arthritic fingers - i do NOT want to have to go through all this. Why can't these geeks just leave things alone? I did not ask for this update = in fact, rejected it numerous time then suddenly it was installed when I signed in one day. BOO!