If you've been using the same firefox profile for a while (especially installing/uninstalling addons?), perhaps it's worth trying starting with a clean firefox profile and re-adding the addons you use... if that solves issues, import the necessary settings from your old profile (no idea how to do that, but I'm sure there's an application for it).
@f- Thx for the input. Much appreciated.
I don't really add or remove addons that frequently. I have a list that I've pretty much standardised on for all my FF installs unless one of them becomes incompatible with whatever version of FF I'm running.
- Download Helper
- Download Statusbar
- User Agent Switcher
- WebOfTrust (installed but usually left disabled)
(All are whatever the most current versions are.)
Also, VACUUM the various sqlite databases FF uses, then defrag the database files. That has helped me in the past to alleviate some of the occasional stutters.
Tried that already. Even ran BleachBit to remove anything that may have been lurking in cookies or whatever. Still happening.
Here's the interesting thing: the problem usually occurs after FF has been open for a while. The thing that tells me it's starting is when I either enter something into the search bar - or when I tell a link to open in a new tab - and the new tab goes into limbo. From what I can see there's a problem when that new tab gets opened. That's when the "connecting" spinner just keeps looping. Once that happens, it's a turkey shoot. Doing a restart clears it. But if I don't restart, sometimes the problem will also clear itself enough (after a minute or two) that I can close the tab and try again. But not always. And once I get that connection timeout FF becomes less and less stable. However, it is not
a problem if I manually
open a new tab and enter a URL there.
I think it may have something to do with the "open new windows in new tab instead
" setting. Because that seems to be where the problem is occurring.
Anyway...I'm going to try a full uninstall followed by a clean install with a fresh profile and NO addons to see if the problem goes away. I'm also setting up a new Nix machine today, so I'll check it out there as well, just to eliminate any chance of a Linux snafu being the cause.