I have the strangest problem I can't seem to find anyone else online having.
While typing (as in without pressing 'enter') anything in the address bar, not 3 characters into my string, the page automatically redirects to any random webpage title match found from my history, and anything not matching a title redirects to a Google search.
Here's the thing: I don't have Google search. I use DuckDuckGo, then Startpage, then Disconnect, and Google is not on my list of search engines.
Using Waterfox 56.2.11
Addons (";" delimiter):
Add-ons Manager
Context Menu 0.4.2.1-signed.1-signed;
ChatZilla 0.9.93;
Cleanest Addon Manager 7.1;
Disconnect 5.18.27;
Disconnect Search 1.4.1.1-signed.1-signed;
Download Status Bar 15.0.0.1;
Download Statusbar 0.9.10.1-signed.1-signed;
DownThemAll! 3.0.8;
Emoji Stickers Postcards Emoticons 3.2;
Fastest Search 3.39.2;
FoxyProxy Standard 4.6.5;
Ghostery – Privacy Ad Blocker 8.3.4;
Greasemonkey 4.1;
HTTPS Everywhere 2019.6.4;
InvisibleHand 6.6;
Lazarus: Form Recovery 2.3.1-signed.1-signed;
NoScript 5.1.8.4;
RAMBack 1.0.1-signed.1-signed;
RightToClick 2.9.5.1-signed;
ScrapBook 1.5.14;
Screengrab! 2.18;
Secret Agent 1.35;
Send Tab URLs 2.3.1;
SoundCloud Downloader - Technowise 0.98;
StumbleUpon 4.21;
Tab Mix Plus 0.5.5.0;
Tamper Data 11.0.1.1-signed.1-signed;
Turn Off the Lights 4.0.37.0;
Video DownloadHelper 7.3.6;
Video Speed Controller 0.5.1