1. Speed dial configuration
   
2. Numbers in address bar/CTRL+number to go to speed dial's nth item
   
3. Option to disable shift+enter in forms (it opens new window and it is happening to me very often when I don't want it)
   
4. "Apply changes" in source code
   
5. UI customization
   
6. Sidebar (even just for web pages would be nice)
   
7. Recently closed tabs next to minimize/restore/exit buttons + option to clear it
   
8. Resuming failed downloads (there is a flag for that in opera:flags but it doesn't work very well)
   
9. More compact download manager
   
10. Running all extensions in the same process
    

• Smart RSS (main extension, latest build): http://smartrss.martinkadlec.eu/smartrss.2014-07-19.1.nex
  
• RSS Detector (adds page button to address field): http://smartrss.martinkadlec.eu/rssdetector.2014-03-16.1.nex
  
• Source: https://github.com/BS-Harou/Smart-RSS
  

• You can use shorcuts as G,H,T,Y,CTRL+A,CTRL+SHIFT+A,K,D (for more info read O12 RSS/M2 docs)
  
• Put ":" before text in search box for full text search
  
• When new feed items are fetched the extension button turns blue/orange. To turn it to grey again you have to select all feeds with new items or explicitly select the All feeds item.
  
• You can multi select feeds and change "update interval" and "autoremove" of all selected feeds at once. When multi-selecting feeds, their articles aren't automatically added to middle column. You must explicitly press enter (moves focus to middle column) or right arrow (doesn't move focus to middle column) to get articles from all selected feeds.
  
• If you click on unread count of a feed, only unread articles are displayed. (You can also use alt+click on a feed item)
  

1. Require.JS loads the snippets with script tags and we don't want to add any script tags to every page when our extensions is running.
   
2. Even if it wouldn't be a problem we still can't load scripts from our extension package with script tag.
   
3. Script tags also has it's own browser scope without the special Opera Extension APIs.
   

var file = opera.extension.getFile('some-file.txt');



if (file) {

    

    var myReader = new FileReader();



    myReader.onload = function() {       

        // myReader.result contains the content of selected file

        alert(myReader.result); 

    };



    myReader.readAsText(file);

}

opera.extension.getFileData('some-file.txt', function(result) {

    alert(result);

});

require(['random-color', '!domReady'], function(randomColor, d) {

    d.body.style.background = randomColor();

});

require._base = '/newname/';

define(function() {

    return '#' + Math.floor(Math.random() * 16777215).toString(16);

});

require('template.txt!text', function(template) {

 alert(template);

});

define(['dependency1', 'dependency2'], function(d1, d2) {

  return d1() + d2.num;

});

require(['a', 'b', 'c', 'd', 'e'], function() {

 var a = require('a');

});

global.globalVariable = 1;

• Alignment - Align selected lines according to "=" character with "CTRL+ALT+A" shortcut.


• ZenCoding - Makes writing HTML easier.


• SFTP - Sometimes you might have to access your server with FTP protocol. This is how you can do it in Sublime Text.


• JSLint - Check your JavaScript files for errors. You can edit its behavior (after installation) in "Preferences">"Package Settings">"JSLint">"Settings-default"-->"jslint_options". I use following: "--bitwise --browser --continue --debug --devel --es5 --plusplus --regexp --sloppy --white --nomen"

{

	"cmd": ["del", "$project_base_name.oex", "2>NUL", "&;", "7za", "a", "-tzip", "-xr!*.sublime-*", "-xr!.*", "$project_base_name.oex", "$project_path/*"],

	"working_dir": "$project_path",

	"shell": "true",

	"encoding": "cp852"

}

• Dynamic (current way)/static(customizable) titles
• Folders (each folder should have customizable count of rows and columns)
• Open sessions instead of just one site (Tamil figured out how to do this, but it would be nice, to just click on some button like "Choose session" and then from some list choose the session and click on "OK" :)
• Any number of rows and columns (so we don't have to edit speed dial ini)
• Possibility to choose a folder of images as background of speed dial. Images would be changing after X seconds or after Opera start up (there even might be some image transitions)
• Reload icon after Opera start up
• Double click on speed dial background opens home page

1. So you've got good build. Now go to the URL given below and save this file into your user javascript folder:
   http://files.myopera.com/BS-Harou/files/image_gallery.js
2. Next you will have to activate you scriptStorage by setting "User JS Storage Quota" in opera:config to higher than zero. For example 50k.
3. The last step is to create mouse gesture or keyboard shortcut like this:
   Go to page, "javascript:opera.userjs.bsharouGallery()"
   
   (Or you can edit ini files and add this button:
   ButtonX, "Open Gallery"="Go to page, "javascript:opera.userjs.bsharouGallery()", 1, "Open Gallery", "Mail Newsgroups"")
4. Now use the gesture/shortcut and black transparent box should appear on top of the page (note: this won't work on page with https protocol until you enable it in opera:config).
5. Now you can simply drag there any images and they will stay there and will be accessible on any other site. If you want to delete some of the pictures, then just drag it out from the black box. You can create folders by right clicking on empty space of gallery and selecting the "Create folder" in the context menu.
6. And that's it. First user javascript gallery is installed and working in your Opera.

Button2, -1393253531=Stop | Reload + Show hidden popup menu, "Devilia Reload Menu", , -1705826954

[Devilia Reload Menu]
Item, "Reload"=Reload
Item, "Reload all pages"=Reload all pages

Item, "Sync now"="Sync now, , , , "Sync now""

var db = openDatabase("dbOpera", "1.0", "opera", 1024*1024); 
var transc = function(t){
  t.executeSql("DROP TABLE IF EXISTS tbOpera");
  t.executeSql("CREATE TABLE tbOpera (id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT ,user VARCHAR(30) NOT NULL ,UNIQUE (user))");
  for (var i=1;i<=10;i++){
    var newUser = "test"+i;
    t.executeSql("INSERT INTO tbOpera (user) VALUES (?)", [newUser]);
  }
  t.executeSql("SELECT * FROM tbOpera", [], sqlSelect, sqlError);
}
var sqlSelect = function(t,r){
  var rows = r.rows;
  for (var i=0,j=rows.length;i<j;i++){
    document.write("ID: "+rows[i].id+" USER: "+rows[i].user+"<br>");
  }
}
var sqlError = function(t,e){
  alert("ERROR "+e.code+": "+e.message);
}
db.transaction(transc);