I've been using Firefox as my default browser for at least 8 years (after switching over from Netscape Navigator). I've never had any problems before, and I love Firefox! Per your info., I've assumed that FF automatically updates to the latest version (it's always been set in my Preferences to do that). But after I got up to Version 10.0, it apparently stopped doing that! When I would check the version, it would say "You are on the update release version" (paraphrase) and then the "checking for updates" circle would just spin.
Three days ago (June 28, 2013), I tried to go to what I assumed was a trusted site (Obama's Organizing for Action) (from a link on an e-mail notice), and I got a notice that FF considered this an untrusted site(?) The next day (June 29, 2013), I tried to reach another trusted site (via Google), the California Lifeline site (phone company), and I got the same "untrusted site" notice(!)
At this point, I decided to see if my FF was up to date. I checked info. on your site and found out that the latest version was 22.0! (Why wasn't it updated for all the versions after 10.0?!) So I downloaded the latest version. When I opened the new version, FF was terribly slow!! It takes forever to load websites or to switch between sites, or to do just about anything! THIS HAS NEVER HAPPENED BEFORE! I've read many articles on what could be wrong and how to potentially fix it, but I'd rather start here! Please help as soon as possible! Thanks much in advance!
Try disabling graphics hardware acceleration. Since this feature was added to Firefox, it has gradually improved, but there still are a few glitches.
You might need to restart Firefox in order for this to take effect, so save all work first (e.g., mail you are composing, online documents you're editing, etc.).
Then perform these steps:
Additionally, please check for updates for your graphics driver by following the steps mentioned in the following Knowledge base articles:
Did this fix your problems? Please report back to us!
I unchecked Hardware Acceleration. That didn't help; still extremely slow.
I started in Safe Mode with Extensions disabled. That didn't help.
I switched to the Default theme. That didn't help.
I tried manually disabling all Extensions. That didn't help.
I tried all the ways to upgrade my graphics driver, but could not figure out how to do it. (Also, the instructions list a lot of potential problems, so I hesitate to do that without further input from you.)
Do you think I should try uninstalling and reinstalling? I definitely want to keep all my Bookmarks! Will they be retained unless I specify not to retain them? (VERY IMPORTANT TO ME!)
Also, after I did the Extension disabling, the "Progress Bar" at the bottom of the page, which tells you how fast pages are loading and when they are done loading, disappeared (?) Also, the text at the left-hand side of the bottom of the page that charts what things are loading, disappeared as well. After I re-enabled all the Extensions, these two elements did not reappear (after restarting).
hello, such issues can also be caused by a firewall/security software which doesn't properly recognize & therefore blocks or slows down new firefox versions: Fix problems connecting to websites after updating Firefox