Agent changers vs. Yahoo Mail and other considerations

nc's Avatar


06 Feb, 2014 10:02 AM

Sheesh, TFX giveth and TFX taketh away. I would have responded in the thread that covered this, but it was closed.

I don't use Yahoo Mail. I don't use Yahoo anything. I tried using the User Agent Switcher add-on, but it affected other functions. Some of its browser/OS choices stopped certain websites from loading specific pages' full functionality. I can't remember which, but they were destinations I needed to visit/use. Worse yet, when I set the User Agent Switcher default, the setting didn't stick.

BTW, 24.2.0 seems much snappier. How much of that is the removal of the need to fight with websites over browser version?

  1. Support Staff 1 Posted by Chris (chtrusch... on 06 Feb, 2014 04:58 PM

    Chris (chtrusch)'s Avatar

    The user agent string that was changed for 24.3.0 will be reverted to the old format in 24.4.0. Sorry about the inconvenience, but a lot of people use Yahoo Mail which doesn't work well with the new user agent string format. In 24.4.0 you can still use a string in the format

    Mozilla/5.0 (Macintosh; PPC Mac OS X 10.5; rv:24.0) Gecko/20140129 TenFourFox/7450 Firefox/24.0

    for your banking with User Agent Switcher. Switch back to "default" when you're done. Don't use other browser/OS choices exept for testing, many of them will cause the website to give you mobile versions or versions optimized non-Gecko browsers. I know it's cumbersome, but there is no better solution if this bank insists on "real Firefox".

  2. Support Staff 2 Posted by Cameron Kaiser on 06 Feb, 2014 05:21 PM

    Cameron Kaiser's Avatar

    The speed change isn't related to this. Firefox's garbage collector bogs down after long uptime -- this isn't a memory leak, it's just more objects in play. When the browser restarts, all the old tabs don't load, so there's many fewer objects to go through and check if they're still in use or can be reclaimed. Exact rooting, scheduled for Fx29, will help this a bit, and generational GC will help this a lot more. You can simulate the same improvement by restarting TenFourFox periodically -- by default it restores all your tabs, so you go back to where you were.

    For the record, I'm a Chase customer and I don't use Yahoo Mail either, but if it's going to be one or the other that complains, it's going to be Chase. Sorry. The TenFourFox token has to stay in the user agent both for version control and for those sites that try to identify it and offer alternative content, of which there are actually some.

Reply to this discussion

Internal reply

Formatting help / Preview (switch to plain text) No formatting (switch to Markdown)

Attaching KB article:


Attached Files

You can attach files up to 10MB

If you don't have an account yet, we need to confirm you're human and not a machine trying to post spam.

Keyboard shortcuts


? Show this help
ESC Blurs the current field

Comment Form

r Focus the comment reply box
^ + ↩ Submit the comment

You can use Command ⌘ instead of Control ^ on Mac