Firefox survival guide

A double click to close a tab ?
browser.tabs.closeTabByDblclick = true

-

Not a lot of bookmarks? We can have a centered bookmarks bar, using userChome .css
#PlacesToolbarItems{ -moz-box-pack: center }

-

Search for the selected text in search engines
https://addons.mozilla.org/fr/firefox/addon/selection-search-ff/

-

Show all bars in fullscreen (tabs, address/tool & bookmarks):
browser.fullscreen.autohide = false
+
using userContent .css

/*
   Override hiding of Bookmarks Toolbar in F11 full screen
   when you roll down the tabs/main toolbar 
*/
#navigator-toolbox[inFullscreen="true"] #PersonalToolbar {
  visibility: unset !important;
 }

And in fullscreen, we can toggle show/hide the toolbar with a right click on the tabs bar (empty space) or address bar.

Well, a little customization?

First, an extension: Firefox Color, which makes it easy to create a theme with our favorite colors,

then a code to put in userContent .css to have nice colors on the home page.

@-moz-document url("about:home"),
url("about:newtab") {
    .search-wrapper,
    .tile {
        box-shadow: 0 19px 38px rgba(0, 0, 0, 0.30), 0 15px 12px rgba(0, 0, 0, 0.22) !important;
    }
    .card-outer {
        border-radius: 15px !important;
        box-shadow: 0 19px 38px rgba(0, 0, 0, 0.30), 0 15px 12px rgba(0, 0, 0, 0.22) !important;
    }
    html {
        height: 100% !important
    }
    body {
        background: -moz-linear-gradient(138deg, rgb(88, 85, 158) 0%, rgb(141, 62, 146) 20%, rgb(187, 59, 75) 80%) !important;
        height: 100% !important;
        margin: 0 !important;
        background-repeat: no-repeat !important;
        background-attachment: fixed !important;
    }
    .title,
    .section-title span,
    .topic,
    .edit-topsites-wrapper .edit-topsites-button button {
        color: white !important;
    }
    .section-title span, .prefs-pane-button button {
        fill: white !important;
    }
    .topic .topic-link, .topic .topic-read-more {
        color: white !important;
    }
    } 

And for the scrollbar color & width, with a code for userContent .css

/* Scrollbar colors and width - applied globally */
@namespace url("http://www.w3.org/1999/xhtml");
:root{ scrollbar-color: rgb(210,210,210) rgb(46,54,69) }
*{ scrollbar-width: thin } /* options: auto / thin / <width> */

Here is an example made with all this and the 3 colors of Solus.

Easy & nice, isn't it?

-

For those who are interested, Nano Adblocker and Nano Defender are now available on Addons Mozilla .org

Custom search in the address bar:
Keyword+space+parameter

Parameter can allow us to refine our searches and limit them to our history, bookmarks, open tabs and page titles or addresses.

List of search parameters:
^ to search in the navigation history.
* to search in bookmarks.
% to search in the open tabs.
# to search in page titles.
@ to search in the URL addresses of the pages.

Ex: To search a word only in history, type keyword ^

-

Select all text when clicking on the URL bar:
browser.urlbar.clickSelectsAll to true in about:config

-

Nice new addon, perfect cosmetic filter to use with uMatrix for example:
https://addons.mozilla.org/en-US/firefox/addon/element-blocker/

Damn, I just discovered that with Alt held down and the mouse wheel, we can go back and forth in the history of an active tab:
scroll down= previous page(s) to first page
scroll up= next page(s) to last page

But the menu bar appears, it's ugly so I press another key (super_L for ex) before release Alt

mousewheel.default.delta_multiplier_y in about:config, is the distance covered on a web page at each step of the mouse wheel.

• Default is 100
• 50 is like line by line.
• 800 is like all the height displayed that we travel, a bit like the pages of a book.

200 is my setting (with mousewheel.acceleration.factor = 19 & mousewheel.acceleration.start = 1) , I find that 100 is too small and 400 not very practical.