Q: How can i disable the status bar pop-up in firefox, particularly for HTML5 fullscreen video? It is particularly problematic when watching a streaming video in an HTML5 player in fullscreen mode.
Currently my workaround is to cancel loading the and hopefully the player will reset and just load the video from then on. Honestly though, I want to be able to turn off the text directly.

A: There are add-ons that can do this, such as Status-4-Evar.
In the Add-On options, set Show status in: to None to disable messages in the status bar.


You can also do this manually with configuration files.
Navigate to your profile folder ("%APPDATA%\Mozilla\"), then go to the chrome folder there, creating it if necessary. In the chrome folder, create a plain text file named userChrome.css
Paste the following in to that file:
@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* only needed once */

.statuspanel-label {background:#FF9!important;color:black!important;font-family:"DejaVu Sans Mono"}

statuspanel {display:none!important}
statuspanel {max-width:90%!important}

statuspanel[type="overLink"] .statuspanel-label
statuspanel[type="status"] .statuspanel-label[value^="Looking"]
statuspanel[type="status"] .statuspanel-label[value^="Connect"]
statuspanel[type="status"] .statuspanel-label[value^="Waiting"]
statuspanel[type="status"] .statuspanel-label[value^="Transfer"]

Ref1
Ref2
