Craigslist Peek works on all Craigslist, Facebook Marketplace (Oodle) and eBayClassifieds, 58 同城 listings page. Multiple cities listing on craigslist.

I created this from my other Craigslist extension for cars section (https://chrome.google.com/extensions/detail/fjjepfjmjcccpikmebdabpacihmdkkkg). And hence Suggestions feature in the cars and motorcycle section.

Works in 'list' view of Craigslist. On top of page :
1. find : [ list | thumb | gallery | map ] words on top.
2. Click 'list'
3. Reload or F5 page.

= Features =

    * Short description under listing
    * Images under listing
    * Multiple cities listing. Lets you broaden your search area.
    * Auto refresh listing to show latest ad
    * Photo gallery
    * Suggestions in cars & motorcycle section of craigslist
    * Minimum model Year to current year range in cars & motorcycle section of craigslist
    * Easily turn off / on this extension from the icon
    * Easy Mark as Spam.
    * Expands messages in craigslist Discussion forums (beta)
    * Filter listing (beta). Search filter.
    * Split listing to Multiple Columns.
    * Fold / Expand list. Quick peek at titles.
    * China cities http://bj.58.com supported too.

Original concepts.

This lets you show listings from multiple cities. This feature requires fast and powerful computer.

Seems new changes in Facebook Marketplace are identical to what I was doing with this extension, so now disabled other stuff and only doing image preview.

= Usage Tips =

    * Enable / disable multiple cities or auto-refresh according to your need.

= Requirement =

      Fast computer with fast internet connection.

== ISSUE ==

      Need you to spread the word about it.

= My Extensions =
Chrome:
https://chrome.google.com/webstore/search/tech4computer
Firefox:
https://addons.mozilla.org/en-US/firefox/user/527582/

Beside Craigslist it also supports eBay Classifieds, Facebook MarketPlace (not working on FB for now. The site is just re-listing posts from Oodle and other listings.) and 58.com 同城.