Noté 5 sur 5 étoiles

When many lightweight themes are installed, this add-on makes managing them extremely easy, including (but probably not limited to):
-- telling lightweight themes and complete themes apart from each other (in the Add-on Manager they appear interspersed in a single list; this extension opens a page listing only lightweight themes);
-- checking how a lightweight theme other than the current one would look like if it were enabled (by hovering the mouse over the thumbnail);
-- finding which lightweight themes were installed from an obsolete URL (such as and need to be refreshed if they are to be used again in the future. (These "obsolete" add-ons are shown in the LWTM without a thumbnail.)
---- WARNING: Reinstalling the same lightweight theme, but from a working URL (such as, which can be done by means of the link in the LWTM page, won't make the obsolete entry disappear; and AFAICT there is no [_Uninstall_] button for lightweight themes. AFAIK the only way to uninstall a lightweight theme consists of removing the corresponding {...} entry, with one (but not both) of the separating commas around it, in the value of the preference lightweightThemes.usedThemes in about:config. Since that value can be extremely long, especially if many lightweight themes are installed, I recommend to do this as follows:

1. In about:config, find the preference lightweightThemes.usedThemes, right click it, and select "Copy Value";
2. Paste the value into your favourite text editor and edit it there;
3. Copy the new value (as it appears in your editor) to the clipboard;
4. in about:config, double-click lightweightThemes.usedThemes (the old value will appear, selected, in an input box in a popup) then click Ctrl+V (to paste the new value which you copied at step 3) then click the [_OK_] button at the bottom of the popup. If you then refresh about:addons or the LWTM (or both) you should notice that the unwanted entry has disappeared.

P.S. Of course, in Thunderbird, about:config is the "Config Editor" which can be opened by means of a button in the "Advanced" preferences.

Cette critique concerne une version précédente du module (0.1a10.1-signed.1-signed).