diff --git a/.mozilla/firefox/README.md b/.mozilla/firefox/README.md
new file mode 100644
index 0000000..7cb5105
--- /dev/null
+++ b/.mozilla/firefox/README.md
@@ -0,0 +1,26 @@
+# Mozilla Firefox
+In fact, lots of settings are synced by Firefox itself.
+So this folder contains just some infos around and settings for [tridactyl](#tridactyl).
+
+## Related files
+- [../../.tridactylrc](../../.tridactylrc)
+- [../native-messaging-hosts/tridactyl.json](../native-messaging-hosts/tridactyl.json)
+
+## Extensions
+1. My collections:
+    1. [Main](https://addons.mozilla.org/cs/firefox/collections/13245610/Ubuntu/)
+    1. [Specific](https://addons.mozilla.org/cs/firefox/collections/13245610/Specific/)
+    1. [Bin](https://addons.mozilla.org/cs/firefox/collections/13245610/Bin/)
+1. Notes
+    1. tridactyl: [see below](#tridactyl).
+    1. _History AutoDelete_ can clean _LoadTabOnSelect_’s temp urls in history (e.g. `^.*4808bb0d\-324e\-4b8d\-bb9e\-a998b765153c.*$`).
+1. Shortcuts
+    1. _Open containers panel_: `Ctrl+.`
+    1. _Open the Firefox Screenshots UI_: `Ctrl+Shift+s`
+    1. _Sidebar_: `Shift+Alt+w` (default for Firefox Notes plugin)
+    1. _To Google Translate_: `Ctrl+Shift+\d` (\d= 1,2,3).
+
+## tridactyl
+1. Plugin can be found on [tridactyl/tridactyl](https://github.com/tridactyl/tridactyl).
+1. Load/Export settings see [tridactyl/tridactyl FAQ section](https://github.com/tridactyl/tridactyl#frequently-asked-questions-faq).
+1. `gn*` (goto quickmark – new tab), `o` in vmode ⇒ reverse selection
diff --git a/.mozilla/native-messaging-hosts/tridactyl.json b/.mozilla/native-messaging-hosts/tridactyl.json
new file mode 100644
index 0000000..3608ee8
--- /dev/null
+++ b/.mozilla/native-messaging-hosts/tridactyl.json
@@ -0,0 +1,7 @@
+{
+    "name": "tridactyl",
+    "description": "Tridactyl native command handler",
+    "path": "/home/jaandrle/.local/share/tridactyl/native_main",
+    "type": "stdio",
+    "allowed_extensions": [ "tridactyl.vim@cmcaine.co.uk","tridactyl.vim.betas@cmcaine.co.uk", "tridactyl.vim.betas.nonewtab@cmcaine.co.uk" ]
+}
diff --git a/Obrázky/Bing Image Of The Day/index_template.html b/Obrázky/Bing Image Of The Day/index_template.html
new file mode 120000
index 0000000..41c14ce
--- /dev/null
+++ b/Obrázky/Bing Image Of The Day/index_template.html	
@@ -0,0 +1 @@
+/home/jaandrle/Vzdálené/GitHub/dotfiles/KDE Neon/Bing Image Of The Day/index_template.html
\ No newline at end of file
diff --git a/README.md b/README.md
index 6021f79..d5ff577 100644
--- a/README.md
+++ b/README.md
@@ -4,21 +4,41 @@
 This repository contains my dotfiles. They are managed by using `git clone --bare`,
 see for example [How to Store Dotfiles - A Bare Git Repository \| Atlassian Git Tutorial](https://www.atlassian.com/git/tutorials/dotfiles).
 
-## Files (groups/info)
+## Quick links
+- [On a new machine](#on-a-new-machine)
+- [Files overview](#files-overview)
+
+## Files overview
 - [Bash](./.bash/README.md)
 - [Vim](./.vim/README.md)
 - [Vifm](./.config/vifm/README.md)
 - [SSH](./.ssh/README.md)
 - [Newsboat](./.newsboat/README.md)
 - Git: [.gitconfig](./.gitconfig), [gh](./.config/gh/config.yml)
+- [KDE Neon](#kde-neon)
+- [Mozilla Firefox](./.mozilla/firefox/README.md)
 
 ## On a new machine
 1. install git
 1. `cd ~`
-1. `git clone --bare --depth 1 --recurse-submodules --shallow-submodules git@jaandrle.cz:jaandrle/dotfiles.git ~/.dotfiles`
+1. `gd_branch=main`
+1. `git clone --bare --branch $gd_branch --depth 1 --recurse-submodules --shallow-submodules git@jaandrle.cz:jaandrle/dotfiles.git ~/.dotfiles`
 1. `alias gitdotfiles='/usr/bin/git --git-dir="$HOME/.dotfiles/" --work-tree="$HOME"'`
 1. `gitdotfiles config --local status.showUntrackedFiles no`
 1. you may also need to use
 	1. `gitdotfiles reset` (`git-dotfiles reset --hard HEAD`)
 	1. `gitdotfiles checkout -f`
 	1. `gitdotfiles submodule update --init --recursive`
+
+## KDE Neon
+- [KDE Plasma5 Fixes](https://zren.github.io/kde/)
+- Using ‘HTML Wallpaper’ (wip)
+	- [Bing Image Of The Day](./Obrázky/Bing Image Of The Day/index_template.html)
+- [GNOME Keyring in KDE Plasma - JWillikers](https://www.jwillikers.com/gnome-keyring-in-kde-plasma)
+- `sudo apt install $(check-language-support)`, see [Popup Language support is incomplete](http://unix.stackexchange.com/questions/421066/ddg#421079)
+- [KDE Neon does not have an hibernation option? : kde](https://www.reddit.com/r/kde/comments/6n5m49/kde_neon_does_not_have_an_hibernation_option/dk7hd8v/)
+- [kde plasma 5 - How to use miracast as an extended desktop on Linux? - Super User](https://superuser.com/questions/1160078/how-to-use-miracast-as-an-extended-desktop-on-linux)
+- [Best tiling extensions for kwin? : kde](https://www.reddit.com/r/kde/comments/qgsv2u/best_tiling_extensions_for_kwin/?sort=new)
+- [KDE Plasma5 Fixes](https://zren.github.io/kde/)
+- [Setup git on the CLI to use 2FA with GitHub](https://gist.github.com/ateucher/4634038875263d10fb4817e5ad3d332f)
+- [G'MIC - GREYC's Magic for Image Computing: A Full-Featured Open-Source Framework for Image Processing - Main](https://gmic.eu/)