Btw, same result in different OS, tried it with Linux and Win. Here are the pictures:

Does this code that I use has the same problem?

:root {
  --tab-toolbar-navbar-overlap: 0px !important;
  --tab-min-height: 25px !important;
}
#TabsToolbar {height: var(--tab-min-height)!important;}

/* TABS - tabs on bottom */
#navigator-toolbox toolbar:not(#nav-bar):not(#toolbar-menubar) {-moz-box-ordinal-group:10}
#TabsToolbar {-moz-box-ordinal-group:1000!important}

/* TABS - throbber */
.tab-throbber[busy]::before {
  background-image: url("chrome://global/skin/icons/loading.png") !important;
  animation: unset !important;
}

.tab-throbber[busy]:not([progress])::before {
  /* Grays the blue during "Connecting" state */
  filter: grayscale(100%);
}

/* TABS - faded text */
.tab-label-container[textoverflow]:not([pinned]) {
  mask-image: unset !important;
}

Yes, but with your .css-file it not only jumps upwards inside the panel, with your css the whole screen jumps up.

Btw, does it work normal for you? Doesn´t it jump as on my pictures on your system?

I think in general it has to do something with the menubar...but I dont know...

Nobody an idea? Is it a bug? What else can I try?

Forgot about the movingtab shifts.

• chrome://browser/skin/browser.css

/* TAB bar - disable movingtab shifts - chrome://browser/skin/browser.css */
#TabsToolbar[movingtab] {padding-bottom:0px!important}
#TabsToolbar[movingtab] + #nav-bar {margin-top:0px!important}
#TabsToolbar[movingtab] > #tabbrowser-tabs {padding-bottom:0px!important; margin-bottom:0px!important}

@cor-el: this fixed it, many many thanks!!

Not the topic, but does anyone also have a hint for me how to get my menubar in the same themebased color as my active tabs/nav-bar?

I've read through this but not sure exactly which posts to pay attention to and which not. I have a userChrome.css file for some other tweaks, but which of the ones posted on here do I need to get my tabs on the bottom without a jumping screen? First plus movingtab shifts?

Hi rosawood

If you use the code in these two replies then it should work.

• https://support.mozilla.org/en-US/questions/1202583#answer-1072015
• https://support.mozilla.org/en-US/questions/1202583#answer-1073494

Note that the need to be at the top of the file.

• @namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* only needed once */

Thanks, that worked.

Installed Firefox 60 today - and found out that FF looks more and more like a piece of crap every update...what the hell are the "designers" here are doing...? I would fire them immediately if I could...

Now not only the menubar has the wrong color, now also the button to open a new tab has a wrong position (~1 pixel too high), the color above the opened tab has gone and an empty line seems to be added...as said, it looks like defect crap.

By the way here is a nice comparison between FF 52 Esr and FF 60 - maybe it helps to see whats wrong..........(or how it should be).

Also the extra-bar on the bottom (-> useful for addons for example...) is completely missing since 57...Firefox is getting more and more unpopular to me (and others, too).

I finally have my FF where I want it--sort of--but have set my options not to update ever. I had previously set them to "notify me first", and got an unwanted upgrade. Grrr. I agree, the developers seems to be doing whatever they want to do, just for the sake of doing it, and instead of polling anyone beforehand, they wait to see who they ticked off. Is this really what software development has come to? I used to be a software engineer, and when we developed code, we made sure it was what the customer wanted. In this case, WE are the customer, but I don't recall ever being asked what I would like to see, and the numerous requests for returning an option for tabs on bottom have been ignored.

rosawood said

I used to be a software engineer, and when we developed code, we made sure it was what the customer wanted. In this case, WE are the customer, but I don't recall ever being asked what I would like to see, and the numerous requests for returning an option for tabs on bottom have been ignored.

Firefox doesn't have "customers"; no cost involved makes you guys "users" of free, open source software which is developed under "different rules".

You don't like it, don't use it! And if you want to be heard please use the appropriate channel for your complaints by submitting feedback to Mozilla directly via the Help > Submit feedback... menu item inside each and every Firefox installation. https://qsurvey.mozilla.com/s3/FirefoxInput/

Locking this solved thread.