Auto Hide bookmark toolbar in Firefox (Deprecated in FF v72 and newer)

As of Firefox v72, this method is deprecated.

As of Firefox 69, the browser will no longer load userChrome.css by default. The toolkit.legacyUserProfileCustomizations.stylesheets preference needs to be manually set to true to restore this ability.

I used to install extension for firefox have bookmark bar autohide after opening a new tab. Now somehow that extension is not available on firefox add-on store anymore…But direction pointed by Reddit shows I actually does not even need that extension…

Here below are the steps for my Firefox 68 (might work for yours as well):

  • Go to about:support within Firefox
  • Under Profile Directory, click on Open Directory
  • Create a folder called “chrome” without quotes
  • Enter chrome, right click and create a new text file. Name it “userChrome.css” without quotes
  • Copy and paste the CSS code below into userChrome.css
  • Restart Firefox (make sure “show bookmark toolbar” is checked already)

#main-window #PersonalToolbar {
visibility: collapse !important;
opacity:0 !important;
margin-top: -23px !important;
transition: all 0.2s ease 0.2s !important;

#main-window[title^="Mozilla Firefox"] #PersonalToolbar,
#main-window[title^="about:newtab"] #PersonalToolbar,
#main-window[title^="New Tab"] #PersonalToolbar,
#main-window[title^="Firefox"] #PersonalToolbar,
#main-window[title^="Nightly"] #PersonalToolbar {
visibility: visible !important;
margin-top: 0px !important;
transition: all 0.2s ease 0.2s !important;
opacity: 1 !important;

Import OVF to VMware workstation

I recently have the needs to test some feature on the latest version of Cisco FMC and decided to install one on my VMware workstation. However when tried to import the OVF file, I ran into following issue:






I changed VirtualSCSI within OVF file under ResourceSubType to lsilogic. But that leaded to another issue: the SHA HASH not matching anymore when tried to import again… Luckily I found this post here.

I uploaded the ovf, vmdk and mf files coming from Cisco to my linux VM and run following: openssl sha1 *.vmdk *.ovf > *.mf

Then downloaded the only mf file back to my PC to overwrite the original one. Now the appliance is able to be imported to work in workstation 14.

P.S. Within VMware workstation, I also upgraded the VM compatibility setting and there does not seem break anything…