Firefox Support Forum

Both drop-down menus (e.g., the drop-down for "Which topic best describes your question?") and popup menus for add-ons in the bookmark bars work inconsistently or not at all. The right-click menu and the 3-bar menu often fail to work on the first few tries, but eventually open. (And in the case of the 3-bar menu, it often opens without certain options, like "Settings," "More tools," and "Help," though these usually appear after waiting a few seconds.) Other menus, like drop-down menus on website or several pop-ups for addons, don't work at all, no matter how many times I try.

The issue isn't solved by starting in Troubleshooting mode (insofar as they can be reproduced -- some things, like the add-on popups, can't be since the add-ons are disabled) or by clearing the cache.

I'm running Firefox Nightly 95.0a1 (2021-10-06) (64-bit) on Arch Linux, though the same issue seems to affect Firefox 93.0.

Thanks very much in advance for any help.

Hello,

I’m using firefox-dev under debian linux and since last updates my cron script that was supposed to open a certain url in firefox at a regular schedule stopped working.

I do export DISPLAY=:0 than run firefox $url and all was fine previously but now I always received a message : “Firefox is already running, but is not responding. To use Firefox, you must first close the existing Firefox process, restart your device, or use a different profile.”

You can easily reproduce by running : sudo -u $(whoami) /path/to/firefox-dev/firefox https://www.google.com

Can somebody explain what is checked by firefox and why it consider it is not responding instead of just open my url in a new tab ?

On Linux, when running: sudo netstat -lnp

I get the following output: Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name udp 0 0 0.0.0.0:5353 0.0.0.0:* 2436/firefox

I see that Firefox listens on UDP port 5353 (mDNS). I do not like that, since the computer has public IP address. I tried to look for ways how to disable mDNS in Firefox, without any luck.

Please could anyone advise how to disable mDNS in Firefox?

I have Only one Firefox window opened, in that window there are lot of tabs, I need a way to close a specific tab by title or Url from command line, something like: close_tab_command https://www.olx.com.pk

if i can get a multiple mini screen on One desktop, on couple of video's with voice and state bar access control it will be great. i will built UP s multimedia Wall'