Woks for me again Rated 4 out of 5 stars

FIXED- Unzip contents of xpi file to folder named {792BDDFE-2E7C-42ed-B18D-18154D2761BD} paste folder in 'extensions' folder in profile folder (C:\Documents and Settings\User name\Application Data\Mozilla\Firefox\Profiles\profilename\extensions) delete xpi file with same name ie. {792BDDFE-2E7C-42ed-B18D-18154D2761BD} from this folder. This works for me. Source: http://support.mozilla.org/en-US/questions/796359#answer-326560

Rated 5 out of 5 stars

On Firefox v.9.0.1 (Mozilla/5.0 (Windows NT 5.1; rv:9.0.1) Gecko/20100101 Firefox/9.0.1 ID:20111220165912) error console shows following errors on a fresh profile and results in continuous loading.
Error: TabRenamizer._setTabTitle is undefined | Source file: chrome://tabrenamizer/content/tabrenamizer.js | Line: 54; Error: TabRenamizer._setIcon is undefined | Source file: chrome://tabrenamizer/content/tabrenamizer.js | Line: 62; Error: TabRenamizer._createTooltip is undefined | Source file: chrome://tabrenamizer/content/tabrenamizer.js | Line: 66
I shall be happy Developer has some second thoughts and takes up the development of only "one of its kind extension". If someone else finds a clue plz post a link.
FIXED- Unzip contents of xpi file to folder named {792BDDFE-2E7C-42ed-B18D-18154D2761BD} paste folder in 'extensions' folder in profile folder (C:\Documents and Settings\User name\Application Data\Mozilla\Firefox\Profiles\profilename\extensions) delete xpi file with same name ie. {792BDDFE-2E7C-42ed-B18D-18154D2761BD} from this folder.

F2 Dialogue can be dispesed with Rated 5 out of 5 stars

F2 > Rename this tab... should lead to a predefined Title, It would be even better if you could dispense with this dialogue.

This review is for a previous version of the add-on (0.9.1).