pkg: archive_read_extract(): Lzma library error: No progress is possible

[Masayoshi Fujimoto]

I tried reinstall firefox, I got the following messages.
How should I fix?

root at freebsd:/ # pkg delete firefox
Checking integrity... done (0 conflicting)
Package(s) not found!
root at freebsd:/ # pkg install firefox
Updating FreeBSD repository catalogue...
FreeBSD repository is up-to-date.
All repositories are up-to-date.
Checking integrity... done (0 conflicting)
The following 1 packages will be affected (of 0 checked):

New packages to be INSTALLED:
	firefox: 34.0.5_1,1

The process will require 78 MB more space.
34 MB to be downloaded.

Proceed with this action? [y/N]: y
[1/1] Installing firefox-34.0.5_1,1...
[1/1] Extracting firefox-34.0.5_1,1:  25%
pkg: archive_read_extract(): Lzma library error:  No progress is possible
[1/1] Extracting firefox-34.0.5_1,1: 100%
[1/1] Deleting files for firefox-34.0.5_1,1: 100%
root at freebsd:/ #