Today we’re pleased to announce the launch of Focus by Firefox, a free content blocker for Safari users on iOS 9 that gives users greater control of their mobile Web experience.
Update: We have been contacted by Rob Wu, a developer on the Chromium project - the open-source foundation for the Chrome browser - who has informed us that this change was not intentional but, rather, an unintended result of fixing a previous security issue (CVE-2015-1297). He confirmed that the issue will only be seen if the YouTube app is installed and that, at the moment, apart from disabling AdBlock or whitelisting YouTube, the only solution, as described above, is to uninstall the app. The problem is expected to be patched in the upcoming weeks or, at least, when Chrome 46 is released.
其中最知名的 AdBlock Plus (ABP) 會最慢的原因也很簡單,因為他預設值會放行廣告,這導致了效能掉很多:
If you’re wondering why the popular AdBlock Plus got low scores in some Chrome tests, the answer is simple and it’s purely down to the acceptable ads check box. Disable “Allow some non-intrusive advertising” and AdBlock Plus will performance wise, sit in the middle of the pack.
Whatever your opinion on acceptable ads, using the option in ABP is not recommended and if you wish to support showing specific ads while browsing, use something else. AdBlock, Adguard, AdRemover and SuperBlock all have an acceptable ads option of some sort, but none suffer a performance drop like ABP.
The overall winner in Firefox is simply the quickest, and that was µBlock origin. µ AdBlock is a fair choice if you want an easy to use but fast blocker, the rest are almost identical so it’s down to personal preference and the options available as to which one you use.
The winner in Chrome is a closer call when you consider the results from all three tests. But as it got a couple of firsts and a second, we would say µBlock Origin is the definite winner, it truly is fast and efficient as the author claims. Both Ghostery and Adguard are still excellent choices and are viable alternatives to µBlock Origin providing good performance in all 3 categories.
不過這完全會低估啊,會在意廣告而裝 Adblock 類的人之中,不少人還會順便擋掉 Google Analytics 啊 XD
不過這篇有提到一份報告,說 2014 整個 internet 使用 Adblock 的比率大約是 5%,而科技類網站會高出更多:(不過我抓不動這份 PDF...)
It is estimated that ~5% of website visitors are blocking ads (PDF report) and the situation could be far worse for websites that have a more tech-savvy audience.
這邊直接先講結論,AdBlock 有嚴重的隱私問題,在「What are they hiding?」這段列出了 AdBlock 2.6.11 (2013-10-25) 版本之後的各種追蹤方式 (而且愈來愈誇張),即使到最新版仍然有隱私的 issue:
Two new AdBlock versions came out since that blog post was published. AdBlock 2.7.9 fixed the bug I mentioned above, now only getadblock.com can track AdBlock users and no other websites.