Multiple proxy profiles
Save named manual profiles instead of typing the same connection details every time.
Official Firefox add-on
PreProx Proxy Add-on for Firefox
Manage manual proxy profiles and supported PreProx proxy access from a compact Firefox panel, with clear connection status and no repeated browser-settings workflow.
Reviewed September 11, 2026
Official PreProx product page
Proxy sources
Manual and PreProx
Minimum version
Firefox 121
Control
Browser toolbar
Data collection
None declared
What it does
Switch proxies without leaving Firefox.
The Firefox add-on brings profile setup, account-based proxy access, and connection controls into one compact interface. It is useful when you regularly move between authorized testing locations or maintain more than one proxy endpoint.
PreProx account access
Sign in to view supported static lease and residential proxy access associated with the account.
Protocol controls
Configure the host, port, protocol, and authentication settings required by the proxy endpoint.
Location selection
Browse available residential locations and search by country, state, or city when targeting is available.
Visible connection state
The toolbar panel distinguishes disconnected, connecting, and active states before you continue browsing.
Firefox privacy controls
The add-on uses Firefox proxy and privacy permissions to apply the selected browser connection.
Product interface
See the connection before you use it.
The interface keeps the selected proxy source, location, and connection state visible. That makes it easier to confirm the intended route before beginning an authorized browsing or testing task.
- Clear active and disconnected states
- Direct access to the controls used most often
- Consistent PreProx account and product navigation
Setup guide
Start in four clear steps.
Install from the official source, add or synchronize a proxy, then verify the selected connection before use.
01
Install from Mozilla
Open the official Mozilla Add-ons listing and choose Add to Firefox.
02
Review permissions
Firefox explains the proxy and privacy permissions before the add-on is enabled.
03
Add or sync profiles
Create a manual connection or sign in to load supported PreProx access.
04
Connect from the toolbar
Select the required endpoint and confirm the active connection state.
Compatibility and limits
Know what is required before installing.
These details describe the current product and distinguish the connection manager from the proxy access used with it.
- Browser
- Mozilla Firefox 121 or newer
- Account
- Optional for manual profiles; required for PreProx sync
- Permissions
- Proxy settings, storage, notifications, privacy, and web request access
- Published version
- Version 1.3 on Mozilla Add-ons, reviewed September 11, 2026
Other PreProx tools
Choose the tool that matches your device.
Each product has its own official installation page, requirements, and setup guidance.
Common Questions
Installation, compatibility, proxy access, and account requirements explained directly.
What does the PreProx Firefox add-on do?
It manages browser proxy profiles, applies a selected proxy to Firefox, and can load supported PreProx proxy access after account sign-in.
Can I use my own proxy server?
Yes. Use a manual profile to enter the host, port, protocol, and authentication details for a compatible proxy you are authorized to use.
Why does Firefox request proxy permissions?
Those permissions allow the add-on to configure Firefox proxy settings and respond to authenticated proxy connections. Mozilla displays the current permission list before installation.
Does the add-on include a proxy subscription?
No. It manages connections. PreProx proxy products remain separate, and manual endpoints must be supplied by you.
How can I confirm I have the official add-on?
Install it through the Mozilla Add-ons link on this page. The listing should identify PreProx as the developer and show support@preprox.com as the support email.
Official download
Install Firefox Add-on from the official source.
Use the verified destination below and review the current permissions or installation prompt before continuing.