Content Blocking
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Annoying ads are the bane of many people’s browsing experience. Many browsers contain methods of blocking ads, and Opera is no exception.
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Right-click on an empty area of the villainous page and go to “Block Content”.
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Click on any offending content to block it. When done, click “Done” on the newly visible content block toolbar.
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Sometimes the ad will change completely and repeating the process proves ineffective. This is because the GUI’s filtering isn’t precise enough. Thankfully Opera can do more, but it requires some additional work.
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Thankfully people have done the work for us and have shared the fruits of their labors. Close Opera, find your preferences folder, and open
urlfilter.iniwithin that folder in your favorite text editor. Replace your ini file information with theirs. Save, and reopen Opera. -

Chances are you will rarely run into an ad again. While increasing Opera’s initial load time (such as after a restart) it has benefits to browsing as can be seen here.