This is a Mozilla Gecko Tab (aka Firefox) extension for Google Chrome. Mozilla Gecko (Firefox..) inside Chrome. Display web pages using Gecko engine in Chrome tab. This extension is based on embedding for Gecko. This extension supports only Windows. Go Home * FAQ Mozilla Gecko Tab Architecture How to set another Gecko(Firefox) version? In "Mozilla Gecko Tab Option->Gecko(Firefox)", You can set Gecko(Firefox) path that you want. But This extension supports only Gecko 1.9.2.x (Firefox 3.6.xx) rendering version. How to remove Mozilla Gecko Tab history? 1. All history stored in a Gecko(Firefox) subfolder that you set. Look in "geckotab" subfolder. If you want to clear history, Delete this folder. 2. Otherwise, Use "Other features->Clear all" menu in Mozilla Gecko Tab. When Mozilla Gecko Tab is freeze or hang. What should I do? When occurs some freeze or hang state from Gecko engine, you can terminate process manually. Open Windows Task Manager -> Find "GeckoTab_core.exe" -> Kill Process Why do not support Gecko(Firefox) latest 12,13,14... version? Mozilla Gecko Tab is based on embedding for Gecko. But Mozilla kills embedding support for Gecko layout engine since March, 2011 (Firefox 3.6.xx). Announce the stop of Gecko embedding Google search results Later, Gecko embedding may be supported again by Mozilla. but It's not clear. If Gecko embedding is supported, Mozilla Gecko Tab will support the latest Gecko engine. Mozilla Gecko Tab is one of the few programs that support Firefox 3.6.xx embedding. Some sites do not work cookies sync (keep login session). Yes, Some sites do not support cookies sync. This site is blocking cookies sync for cross-browser. but It works well on most sites. Why can't I sync this extension access multiple computers? Chrome doesn't sync any extension which contains an NPAPI plugin. Mozilla Gecko Tab supports Windows 8? Yes, but it only supports Desktop Mode. Windows 8 metro mode dose not support NPAPI plugin. Can I hide the browser action icon? In Chrome 9 and higher versions, you can right click on the icon and click on "Hide button". Why can't I install this extension on Chrome OS,MAC,Linux? This extension contains an NPAPI plugin and requires Gecko Windows version, which is unsupported on Chrome OS,MAC,Linux. Does this extension supports multi user session? (Chrome 16 and later) This extension contains an NPAPI plugin. Chrome does not fully support NPAPI plugin in multi user session. So, This extension can not be used simultaneously in multiple session. In a later version of Chrome, this problem may be fixed. but It's not clear. Mozilla Gecko Tab, since 2011