Are you using Drive or docs? Also have you also tried the offline version of Google Drive, Google Sync? There you can drag and drop them into a local file that will upload it as well.

Google Drive.

Look at the attached image "Problem1.png".

This is when I drag a file and drop on the gdrive interface using internet explorer 11.

That used to work on previous versions of firefox.

It doesn´t work anymore.

Now take a look at Problem2.png.

Inside one of my gdrive folders, i I click on the "Upload file" button, that´s what I get, using internet explorer 11.

The open file dialog so I can choose the file to upload.

That also used to work with firefox 29.

Now, when you acess one of the folders, the left menu disapears and it´s not possible to upload files anymore.

As you see, there were 2 ways of uploading files to the gdrive interface:

1 - by dragging and dropping the file directly to the webinterface. 2 - by acessing the folder and clicking on the upload file button.

Both ways do not work anymore.

I would like to add that "instaling gdrive gadget" is not an option.

HI leobruno, do you have any addons that block scripts on the drive.google.com page when you drag and drop files into a drive folder?

Does this also happen in version 33 or in the new drive?

No addons blocking scripts. I´m using Firefox 33.

I don´t understand what do you mean by "new drive".

I´m using the only one avaiable and access @ "drive.google.com"