Drag URL from location bar focuses unwanted tab

Question

In all of the browsers I use, I'm constantly dragging URLs from the address bar to <elsewhere out of the browser, e.g. a folder>.
("Because that's the way I work, that's why.")
In or out of ffox safe-mode, and no matter where I place the tabs bar, if the dragging path crosses a tab (i.e. the tab header where the page title is displayed), that tab is focused i.e. selected AKA activated.
This is often a big performance hit (Definition: more of a hit than I'm willing to sustain), not to mention a d**ned annoyance.
And the re-focus initiates pretty quickly.
I'm not dragging particularly slowly. Definitely not hovering.
I'd be happy even with a solution which simply lengthens the interval before this happens.
I've searched about:config for 'delay', tried changing a couple of <not very plausible> candidates, no joy.
Using ffox 36 after a very long time of not using ffox, so I can't say if this is long-standing ffox behavior.
TIA
p.s. -- I.T. guy who's been doing this since before the PC/XT. As such, reeeeaallly hoping for zero replies which mention 'reboot', 're-install', 'try older', 'try newer', 'virus', 'new profile', HJT, MWB, etc.
IOW, hey, you kids get off my lawn.
alt keywords URL Bar, Awesome Bar, icon, favicon, anchor, tabs toolbar, mouse, pointer

Answer 1

Fred, cor-el...
Another part of "the way i work" is that most of my windows, and especially the ones i use the most, are placed:
-- tight against the right side of the desktop (actually, a few pixels past), so that i can just slam the mouse (pointer) against that side, and thereby
land squarely on the scrollbar without any fine manual control; and
-- tight against the top, so i can do likewise to bring a partly-covered
window into focus by landing squarely on its title-bar. (The windows are
all kept at dimensions that make them overlap, both left-to-right and
top-to-bottom, so that the lower-left corners tend to form a top-left to
bottom-right diagonal across the desktop. That way i can easily switch to
any window by touching an unobscured part of either its title-bar or its
bottom border.
The short-and-wide windows are things with a lot of columns, like directory / file trees, spreadsheets, etc., and the tall-and-narrow
windows are the text-dominated apps like browsers and editors.)
I already do leave part of the desktop visible at the very bottom and the
very left. So, i can easily drag links (or other items) from a page (or drag
the URL), either to the desktop or to pretty much any window which i
have open and un-minimized.
The other factor is this: i keep the "taskbar" configured to appear only when i slam the mouse (without needing careful positioning) against the
LEFT of the desktop (so the window titles are actually wide enough to be
legible) -- and i do likewise for the browser, i.e. have the tab bar on the
left so that the tab titles are wide & legible.
So, it's difficult to do the dragging without either passing over an
unfocused tab, or moving the mouse more slowly and carefully than i'd
rather bother with (to avoid being slowed down). About the only thing
which would consistently work, is to carefully drag to the top (or past
the bottom) of the browser window, without crossing an unfocused tab,
and then to the desired drop-point.
As i mentioned in the O.P., it would be a lot easier if there were some
way to just *slightly* increase the x-millisecond lag between the time
the mouse first crosses a tab, and the time the focus is switched.
As i said, i'm back on firefox (for about 2 months) after a long time away.
And i don't have this problem on other browsers. I don't remember how long the "change-focus delay" was on Opera12 (maybe even infinite),
but I just now tried it on Chrome 32, and it's about 500 msec if i pause
over an unfocused tab, and about a full second if the mouse is constantly
moving -- IOW, plenty of time for me to "pass through the neighborhood"
without having to think about it.
And here's irony: on SeaMonkey (2.33), it doesn't happen **at all**.
Unfortunately, neither Chrome nor SM seem to have a reliable,
non-kludgey way -- not even with extensions -- to have vertical tabs as an
integral part of the browser window.