Greetings, After having been "On th' Net", for approx. 6 hours earlier today, with No Issues,......About an hour ago, (And No,.... I didn't recieve a Firefox Update today, to the best of my knowledge, although today has been very chaotic & stressful),....I tried to open a PDF, of which I view on the Firefox Browser, & I got a "Couldn't load XPCOM." I then "Right Clicked" the Firefox icon & tried to open Firefox as an Administrator, & I got the same message. I then "Right Clicked" the Firefox icon, & sought the "Refresh Button", But there is none. The "Installed Browser" for Windows 10, is how I've managed to get to this Forum, of which I do not trust. My Email is via YAHOO/Frontier, & since I, for the moment, cannot access My email, of which, I'm thinking that to see any replies to this situation that I'm in, that I will have to use YAHOO, so as to access Frontier. I've seen where situations like this have been occurring, & the most recent that I saw is this: cor-el Moderator Top 10 Contributor 1/12/23, 1:08 AM more options An error message about XPCOM missing or about platform version usually happens because of a failed Firefox update that left you with a mixture of old and updated files in the Firefox program folder. This can happen in case security software was keeping a handle of some of the files in the Firefox program folder preventing Firefox from replacing all the files. You need to do a clean reinstall and remove the Firefox program folder to ensure that all files are replaced. You may have to disable security software temporarily in case the problem persists. You can find the full installer of the current Firefox release (108.0.2) in all languages and all operating systems here: https://www.mozilla.org/en-US/firefox/all/#product-desktop-release https://www.mozilla.org/en-US/firefox/108.0.2/releasenotes/ ----------------- Will I be able to save All of My Favorites? I have several years of Favorites there & many of them are critically needed. I realize that the Add Ons/Themes/Settings will have to be re-installed/adjusted, but I'm good with that. Again,... Keeping My Favorites is critical, & "If" they would be deleted, then is there any Possibility of Tech/Engineering accessing My Firefox Folder & saving them? Regards