Can't load plugin

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Create proxy to localhost port forwaded from ssh tunnel
2. Manually select proxy or set to auto switch with rules configured
3. Proxy not select/used, immediately resets to direct connections.

What is the expected output?
Proxy selected and page loaded.

What do you see instead?
Direct connection selected, page does not load if located within realm of proxy.

Operating system:
Mac

Error Log:
copy it from "chrome-
extension://caehdcpeofiiigpdhbabniblemipncjj/console.html"

[09:52:19] [info] - Extension Info: v1.6.3
[09:52:20] [info] - Browser Info: 5.0 (Macintosh; Intel Mac OS X 10_6_8) 
AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.52 Safari/537.17
[09:55:50] [error] - Plugin Error @ProfileManager.getConnections() > TypeError: 
Object #<HTMLEmbedElement> has no method 'getConnections'
[13:57:19] [error] - Plugin Error @ProfileManager.applyProfile(Profile: 
{"name":"Sanger","proxyMode":"manual","proxyHttp":"localhost:3128","useSameProxy
":true,"proxyHttps":"","proxyFtp":"","proxySocks":"","socksVersion":4,"proxyExce
ptions":"localhost; 127.0.0.1; 
<local>","proxyConfigUrl":"","color":"blue","id":"Sanger"}) > TypeError: Object 
#<HTMLEmbedElement> has no method 'setProxy'
[16:34:39] [error] - Plugin Error @ProfileManager.getConnections() > TypeError: 
Object #<HTMLEmbedElement> has no method 'getConnections'
[16:34:55] [error] - Plugin not loaded!
[16:35:44] [error] - Plugin not loaded!
[16:38:49] [error] - Plugin Error @ProfileManager.applyProfile(Profile: 
{"name":"Sanger","proxyMode":"manual","proxyHttp":"localhost:3128","useSameProxy
":true,"proxyHttps":"","proxyFtp":"","proxySocks":"","socksVersion":4,"proxyExce
ptions":"localhost; 127.0.0.1; 
<local>","proxyConfigUrl":"","color":"blue","id":"Sanger"}) > TypeError: Object 
#<HTMLEmbedElement> has no method 'setProxy'
[16:39:45] [error] - Plugin not loaded!

Please provide any additional information below. Attach a screenshot if
possible.

This was a preconfigured proxy which stopped working over the last month or so. 
Sorry I can't be more specific. Although the auto switch rules seem to have 
been broken for longer, although that might be down to me not configuring them 
properly.

Original issue reported on code.google.com by nath.p.j...@gmail.com on 28 Jan 2013 at 4:42

[GoogleCodeExporter]

Also, just tried reset options from the console page, in an attempt to start 
from scratch. I get a 'options successfully reset' message, but they persist.

Original comment by nath.p.j...@gmail.com on 28 Jan 2013 at 4:45

[GoogleCodeExporter]

Last attempt at fixing myself, I reinstalled the extension, but no success. 
Exactly the same error.

Original comment by nath.p.j...@gmail.com on 28 Jan 2013 at 4:49