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Open new posts on tabs Compatible with Firefox 57+

Opens new forum posts on new tabs with a single click.

Not yet rated
2 users

Open Page in Private Window Compatible with Firefox 57+

Open a copy of the current page in a new Private Window. This is useful for reading articles on websites that limit the number of articles you can read per month.

Rated 5 out of 5 stars (3)
248 users

Open Play

Расширение дает возможность переходить по ссылкам забаненых сайтов, если такие сайты имеют зеркала.

Rated 5 out of 5 stars (2)
44 users

Open Play Store with toolbar button Requires Restart

This Firefox addon adds an Play Store button to the top toolbar. This Play Store button opens Google Play Store in new tab.

Rated 5 out of 5 stars (1)
160 users

Open preset URL in Private Browsing window

Display a toolbar button to open a preset URL in a new Private Browsing window.

Icon by Aha-Soft (http://www.aha-soft.com/), published under the CC Attribution 3.0 United States License.

16px version downscaled by aviav.

Not yet rated
11 users

Open Private Links

Abre los links desde el click derecho en modo privado.

Not yet rated
7 users

Open Profile Folder Requires Restart

Open current profile folder from "Tools" menu or toolbar button.

Rated 4 out of 5 stars (18)
2,138 users

Open RegEdit Key

[WINDOWS ONLY] Open selected registry key directly in the registry editor from context menu.

Rated 4 out of 5 stars (7)
259 users

Open Rewrite Firefox Extension

Adds Ctrl + I hotkey (keyboard shortcut) to go to other search engine. Adds Ctrl + M to go to modify search query. This extension is aimed to be used with OpenRewrite.com search engine.

Not yet rated
5 users

Open Search Notification Requires Restart

The Open Search plugin notification was removed for Firefox 4 (Bug 430627).
This Addon gives Firefox 4 a Open Search notification just like Firefox 3.6 has.

Rated 4 out of 5 stars (2)
92 users

Open Secure Requires Restart

Adds the ability to open a non-secure URL by applying the secure https protocol.

Rated 3 out of 5 stars (2)
101 users

Open Selected Links Compatible with Firefox 57+

Adds context menu items to open multiple selected links or selected text URLs in new tabs.

Rated 4 out of 5 stars (1)
117 users

Open Serial Tabs Requires Restart

<< This addon is superseded by Open Auto Bookmarks. See About below >>

Create Serial Tabs with Load-Ahead Preparation from Bookmarks for Instant Viewing.

Rated 5 out of 5 stars (1)
27 users

Open Some Bookmarks Requires Restart

<< This addon is superseded by Open Auto Bookmarks. See About below >>

This extension creates a new Bookmarks sub-Folder PopupMenu Item which opens a specified number of Bookmarks, while only loading (not opening) any remaining.

Rated 5 out of 5 stars (2)
70 users

Open sync tabs button Requires Restart

Just a button that opens synced tabs in a new tab.

Rated 4 out of 5 stars (5)
196 users

Open Tab Count Resurrected Requires Restart

This extension displays the number of open tabs for each window and the total number of open tabs (in all windows) in the status bar. This is a fork from an extension by Hilary Mason.

Rated 5 out of 5 stars (1)
43 users

open tab count widget Requires Restart

Displays the total number of open tabs (in all windows & tabgroups) in the addon-bar. Can be moved to any toolbar. Very bare-bones, no preferences.

Rated 3 out of 5 stars (16)
352 users

Open Tabs Next to Current

Open new tabs always to the right of the current one.

Rated 5 out of 5 stars (28)
4,814 users

Open Tabs Next to Current Plus (Discontinued)

Discontinued in favor of Open-Tabs-Next-To-Current since all the functionality this add-on was aimed for already implemented in the original add-on.

Rated 3 out of 5 stars (2)
233 users

Open tabs to clipboard Compatible with Firefox 57+

Copies the titles and URL's of all open tabs to the clipboard.

Not yet rated
55 users