Export bookmarks DOES working with FF3.5.2 Rated 4 out of 5 stars

Yesterday I installed FF3.5.2 and the bookmarks "Export to HTML" feature came to life back again even with MR Tech Toolkit installed. After one year... (see below). Of course it was an interference from another add-on. Which one? I don't know... Mel Reyes asked me to investigate it but (sorry) I had no time to Bisection Test of more than 50 add-ons I have installed. I decided for a roundabout: Keep My Boomarks ! (currently) 0.1.4 to export to a local folder, but it is a FF3.0.x add-on... so I tested FF3.5.2 bookmarks export (MR Tech Toolkit activated) and everything works fine.

"Export bookmarks does not working
Rated 3 out of 5 stars by AxelTB on October 2, 2008
... After install MR Tech Toolkit (formerly Local Install) 6.0.1 on Firefox 3.0.3, the Firefox is UNABLE TO EXPORT BOOKMARKS TO HTML. If I disable MR Tech Toolkit add-on, then bookmarks export is possible"

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