Cant find proper location to place config.js and config-prefs.js on Linux

[tortious]

I am not sure what location to put these files in on Manjaro Linux (KDE Plasma).

Everything seems to be located at /home/myusername/.mozilla/firefox/myprofile/

Your instructions state to place the config.js and config-prefs.js in the firefox installation folder (with the latter being placed within \defaults\prefs). However, aside from the path mentioned above, I am having trouble finding anything else that looks like it could be my firefox installation folder.

I also tried looking for channel-prefs.js to get a frame of reference as to my installation folder location, but could not find that either.

Please help. Thank you!

[xiaoxiaoflood]

fx-folder.zip files are packed with paths used by Firefox for Windows.
Linux users must extract the two files individually to the paths below.

• /usr/lib/firefox/config.js
• /usr/lib/firefox/browser/defaults/preferences/config-prefs.js

On Linux, extractting folders structure from fx-folder.zip may not work. Windows uses \Mozilla Firefox\defaults\pref\config-prefs.js, while some Linux packages may use /firefox/browser/defaults/preferences/config-prefs.js.

Of course, it's possible that you have installed Firefox in a different location, but /usr/lib/firefox/ is usually the default.

If you use use Firefox snap, main folder is /etc/firefox/, so:

• /etc/firefox/config.js
• /etc/firefox/defaults/pref/config-prefs.js

[mozo78]

It's working great on Linux, thank you :)
https://i.imgur.com/vhogQMU.png

[Lalarian]

Hello! Could you please explain this more detailed?
I think 'config.js' belongs into '/opt/waterfox-g3/browser/defaults/preferences/' now. But where does 'config-prefs.js' go?
When I try putting it into same directory as config.js I get 'Error reading configuration file.'

[xiaoxiaoflood]

I don't use Linux, but I think I need to edit my comment above.

Here on Windows, config.js must be placed along with Firefox executable, and config-prefs.js must be placed a little deeper, into \defaults\prefs. On Linux, it seems that the folder is named preferences instead of prefs, and defaults folder is inside browser.

The thing is that in my previous comment I said that config.js must be placed in preferences folder, but it should be config-prefs.js.

So I think it's like:
/usr/lib/firefox/config.js
and
/usr/lib/firefox/browser/defaults/preferences/config-prefs.js

Try this and tell me if it works, so I can edit my previous comment.

[Lalarian]

Yes, this seems to work (besides the UI looking bugged in detail, the paths seem to be working).
(The rebuild button doesn't exist, despite having the script in '/home/ladmin/.waterfox/0mu06md0.default/chrome/rebuild_userChrome.js', but the staus bar is being shown)
So adapted to my setup (with Waterfox and installation in /opt) it's looking like this:

/opt/waterfox-g3/browser/defaults/preferences/config-prefs.js
/opt/waterfox-g3/config.js

Thank you! 👍

Btw: During this I found that the 'old' path still exists, which is adding some confusion:
'/opt/waterfox-g3/defaults/pref/channel-prefs.js'
Can I assume this is outdated and should be deleted, from my interpretation of

Formerly:
defaults/pref
(Still working in Firefox 60.0a1)
Presently:
browser/defaults/preferences
?

[xiaoxiaoflood]

Thank you, comment updated.

About unpolished UI, unfortunately it's expected because I don't test on Linux and there are minor CSS differences here and there. Maybe someone could write fixes and submit them for me.

[Lalarian]

Where would I have to search for the reason the button is not there?

[xiaoxiaoflood]

rebuild_userChrome.js

It must be rebuild_userChrome.uc.js.

[Lalarian]

Oh, sorry - it actually is. That was just a type of mine.
I just remembered that I could not find a way for clearing the startup cache in the beginning.
Because there's neither a button for doing so in about:support nor is there a directory named 'startupCache' in my profile folder..

Maybe this is the reason.

[xiaoxiaoflood]

If status-bar.uc.js is working for you, the issue here is not about startupCache.

Keep in mind that I use Firefox Developer Edition, currently in version 85. Things may or may not work on other versions (apparently you're using Waterfox based on Fx 78), I don't officially support any version other than current DevEv.

Rebuild's button should be automatically placed next to urlbar. There's also the item in hamburger menu:

And it's possible to replace the icon by item in Tools menu:

[Lalarian]

Wow, both items don't exist in my browser. Neither The Manager's entry in the Tools menu, nor 'UserScripts' in the hamburger menu.
About menu says 'based on Gecko 78.6.0'. So probably my browser is too old.

I just naively I entered the rebuild-button-script into Tampermonkey and executed it through the context menu. Result was:
ERROR: Execution of script 'userChromeJS Manager' failed! UC is not defined
But probably this is just a matter of scope/context, I assume..

[xiaoxiaoflood]

userChromeJS scripts (.uc.js) are totally different than normal UserScripts (.user.js).

Well, rebuild is not running for you. The reason, unfortunately, only you can debug. Just make sure rebuild_userChrome.uc.js is in chrome folder, in the same location as status-bar.uc.js and any other .uc.js. And you need to restart Firefox to apply.

[Lalarian]

OK, then thank you very much! 👍
Finally my browser is working again - I can even move AddOn induced items into the new status bar, that's what I needed. Probably the rest is going to work once Waterfox (or even Firefox stable) reaches the required version.
P:
I will still try a bit.. where could I see debugging information about userchrome scripts? I couldn't find anything in regards to userchrome in the F12 tools, yet.

[xiaoxiaoflood]

I just tried on Fx 78 and it's working. I don't know if Waterfox has something exclusive that may break it, but I don't think so. If status-bar is running, userChromeJS is running. So just save rebuild in the same folder you put satus-bar.uc.js and restart Firefox (Waterfox).