Old Visu firefox extension

[Seijboldt]

Hi Seijboldt,
the extension works perfectly. 

A few suggestions for improvement:
1. When you select multiple elements, copy them, and then paste them again, it would be nice if the newly pasted elements were all automatically selected.
2. Option to delete multiple selected elements

Thanks for the feedback!
Both features are in the pipeline, hopefully I'll get them done today.

I suppose you are on a SL? Haven't tested it on a LM yet.