Extensions: Tools, top rated

Translator

(578) by sailormax · 1,305,026 downloads

Translate selected or entered text

Ghostery

(463) by Ghostery · 856,036 downloads

Protect your privacy. See who's tracking your web browsing with Ghostery.

SaveFrom.net helper

(424) by savefrom · 5,114,746 downloads

Download YouTube, RapidShare, VK.com and 40+ sites in one click.

Tab Vault

(297) by spadija · 201,551 downloads

Store tabs for later without wasting space or memory.

NoAds Advanced

(279) by Gemorroj · 657,238 downloads

Advertisement blocking filter.

HyperTranslate

(209) by nero1996 · 114,366 downloads

Advanced inline translator: Select the text then press selected key to translate selection.

Tab Grouper

(127) by starsolaris · 131,953 downloads

Tab Grouper is a easy way to organize a lot of tabs by grouping them by site url. Opera 12 only.

oClock

(115) by zxcat · 648,376 downloads

Phone-styled digital clock with Moon Phases! Now with configurable skins, incl. Transparent bg for Z1-Ultra!

Up For Everyone

(107) by artyname · 58,788 downloads

When you see an error connecting to a site, this extension provides you with information of that site availability for other visitors.

Violent monkey

(101) by gera2ld · 35,415 downloads

UserScript support for Opera.

Source

(95) by Deathamns · 131,126 downloads

Source code related features.

Instant-Dictionary

(86) by DoTheEvo · 46,216 downloads

Instantaneous definition of highlighted phrase in google's dictionary

Unshorten

(66) by runeh · 19,436 downloads

Changes shortened URLs back to the originals

Tab Accordion

(62) by courtneymiles · 18,492 downloads

This widget automatically expands active tab groups and contracts inactive ones... like an accordion!!!

Facebook blocker

(61) by lennartc · 87,005 downloads

Block connections to facebook from third-party sites. Prevents Facebook from tracking your browsing behaviour. Requires Opera 11.10+

No Dupes

(61) by al007 · 76,526 downloads

Removes duplicate tabs on current browser window.

No click to activate

(43) by kapsi · 14,485 downloads

Removes the "click to activate" message on Flash content

Time Counter

(34) by kos1nus · 21,901 downloads

Time statistics

Мониторинг обменников

(31) by besigor · 3,378 downloads

Мониторинг курсов обменных пунктов

Google search results blocker

(22) by dxg · 3,865 downloads

Lets you block google search results per host.

Adblock Plus

(898) by adblockplus · 4,206,534 downloads

Blocks all annoying ads on the web: video ads on YouTube, Facebook ads, banners and much more.

AutoStack

(182) by spadija · 89,831 downloads

Keeps tabs in the stacks from which they were opened

AdSweep

(180) by miki100 · 152,628 downloads

An online ad-removal tool for your favourite web browser.

NotScripts

(120) by optimalcycling · 180,535 downloads

Provides a high degree of NoScript like javascript blocking with an easy to use interface.

External Scripts

(100) by BS-Harou · 51,283 downloads

Block external scritps from same or other domain

InSite Search

(80) by netload · 48,478 downloads

Search within the current site

Redirect to HTTPS

(77) by leomajko · 101,013 downloads

Automatically redirects you to the secure version of web pages.

NoAds Multilingual + German

(75) by ChaosWalksIn · 208,793 downloads

Blocks advertisement/external scripts, as well as elements of a page. In addition to that it contains the function to import subscriptions from AdBlock Plus EHH.

PanicButton

(73) by greiner12 · 60,187 downloads

Hide all your tabs at once with one single button and restore them later.

PageTranslator

(71) by tagawa · 179,703 downloads

Translate part or all of a page into your language.

Persistent Text

(63) by Jere · 48,296 downloads

This feature enhancement saves and restores form input on closed tabs. It remembers the text you were typing if you reopen a tab after closing it, or if Opera…

GeoData for IP

(57) by Mikanoshi · 91,584 downloads

Geolocation info for currently opened domain's IP (server)

BugMeNot

(52) by Gemorroj · 111,161 downloads

Find logins/passwords for websites that force you to register.

Up!Button

(51) by daemonium · 31,213 downloads

Небольшая кнопка для моментального перехода в начало страницы.

Running Timer

(50) by windlibra · 18,221 downloads

Show how long the Opera runs, and furnish alarms to call attention to user.

Close duplicates

(49) by Pomyk · 64,846 downloads

Button to close duplicate tabs.

Ovi-store download

(47) by razblade · 53,693 downloads

Unofficial add-on. Adds a button "Download" for free content in Ovi store, without manipulation of the user-agent.

Analog Clock

(42) by lonedev · 396,012 downloads

This is a Speed Dial extension showing a simple analog clock.

Drag-Resize TextArea

(41) by edvakf · 7,443 downloads

Shift+Drag to resize textarea

Calculator

(40) by animedio · 89,188 downloads

Simple calculator

Documents preview

(38) by prelud · 164,508 downloads

Preview .pdf .doc .ppt files

OpTime

(38) by yurgen · 25,935 downloads

Logs the time you spend on various sites and totally in Opera.

Dr.Web Link Checker

(37) by doctorwebav · 157,345 downloads

Scans HTML links with Dr.Web Online Anti-Virus using a context-menu item. Autoscans Facebook, Vk.com, Google+ Social Network links.

Mini Wolfram Alpha

(37) by arturo182 · 19,304 downloads

Wolfram Alpha mobile in a popup.

Taskboard

(35) by avola · 13,962 downloads

Write, arrange and edit notes easily with the Taskboard.

Persian Jalali Calendar

(35) by kav3h · 11,462 downloads

Persian (Farsi) Jalali Calendar extension for Opera Internet Browser.

Google Docs Viewer

(34) by al007 · 28,049 downloads

Automatically previews documents, spreadsheets, presentations and image files in Google Docs Viewer.

Swiss Knife

(33) by leomajko · 129,790 downloads

A bundle of all many features, including: automatic redirection to secure webpages; open PDF, DOC and other files using an online viewer; download YouTube videos easily.